One note suddenly lagging on samsung ultra

Question

One note suddenly lagging on samsung ultra

Justin Adams 15

Good morning,

I am an avid user of one note across my devices. I bought a Samsung ultra as a replacement for my Samsung note 10 because of the pen and ability to use one note on the move and interactively with my surface. Last week out of the blue it started to lag badly and is really unusable on my phone (surface remains fine.) This is the only reason that i picked the ultra and to date it has been amazing. i have tried all the usual fixed with no success. the app continues to work ok on my old note 10 which i have as a home phone. why has this happened and what can I do to resolve. other than downloading a Samsung update i have done nothing new.

Johan 5 Reputation points

2026-03-11T10:06:55.37+00:00

I have a similar problem, but with the Samsung Tab S10 Ultra. When I write, it often works fine, but sometimes when I later move the screen, what I have drawn moves with it. The worst is when I try to erase; it almost always takes several attempts before the line disappears, and sometimes it doesn't work at all. I have to start drawing and then erase again, and then it works. Moving drawings with the selection tool also lags incredibly much. If you click undo, the whole page has to reload. I think this started after a Samsung update, but I'm not sure. I have tried reinstalling, which helped for a little while. Clearing cache/data, which doesn't help. Restarting the tablet doesn't help. I have closed all notebooks except the one I am working in, which makes no difference.
Version on onenote: 16.0.19725.20156
One UI-version: 8.0
X920XXS7CZB5
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-03-16T10:07:52.2466667+00:00

Hello Johan

Thank you for your feedback, and please accept my apologies for the delayed response. Based on the feedback shared by Shehan below, I recommend reviewing the battery settings for OneNote and changing the configuration from Optimized to Unrestricted. This adjustment has proven to be effective in resolving the issue in similar cases.

Please let me know if this helps or if you require any further assistance.
Tom 25 Reputation points

2026-03-20T12:39:02.08+00:00

@Gabriel-N I have just tried changing the battery setting on my new S11 Tab Ultra, and it does not work.

When typing, it is very laggy, and if you are typing at a normal speed, will often take a full word to catch up. At times, you can apply a full stop and it will appear in the middle of the word you just typed. And when using del/backspace several it will pause, then delete several words all at once.
Tom 25 Reputation points

2026-03-20T12:48:45.4533333+00:00

To add to my previous comment.

This is a S11 Tab Ultra with Onenote version 16.0.19725.20156, using the Book Cover Keyboard Slim.

I've tried the battery optimisation change, cleared the cache, reinstalled the app, unlinked sync with Samsung, and it is still very laggy as per the above symptoms.
Johan 5 Reputation points

2026-03-20T12:59:33.24+00:00

Hi.

I tried changing it to unrestricted and it helped a bit. Erasing works almost all the time now, and what you draw doesn't follow the screen as often anymore. But the selection tool is still very laggy, though better.
Tom 25 Reputation points

2026-03-20T13:12:12.5633333+00:00

The only way I have found to reduce the lag is to reinstall the previous APK for app.

APK version 16.0.19127 October 31 2025 from Apkmirror - architecture; arm64-v8a

This reduced all lag and the keyboard now works correctly.
Max 20 Reputation points

2026-03-22T04:48:10.0366667+00:00

I have the exact same problem. Out of the blue today, words are dragging on the screen with touch movement, erasing is incredibly laggy, and the app as a whole is very slow. I am using OneNote on a 2 year old galaxy tab s6 lite. I tried clearing cache, reinstalling app, restarting tablet to no avail. I probably will finally stop using OneNote after this, its always being so laggy and causing me to lose work, and now I've had to spend the whole day trying to fix this device during exam season.
Tom 25 Reputation points

2026-03-22T06:26:06.4766667+00:00

Max, I rolled back to a previous version and it is now perfectly fine again. Version 16.0.19127.20320 (arm64-v8a) if that helps.
Pieter Karunia Deo 0 Reputation points

2026-03-22T14:31:00.1433333+00:00

I also have same problen. using on redmi note 13 pro +. Lagging and it start to disturbing me.
Max 20 Reputation points

2026-03-22T20:14:13.77+00:00

Thanks Tom, just wondering if you still experience normal syncing functionality after rolling back? no issues with retaining recent user data? I will back everything up and give it a try
Tom 25 Reputation points

2026-03-23T07:32:46.0333333+00:00

Max,

I've just checked sync across my devices. I added a page on my Samsung with the older APK.

It syncs fine with my Android phone, Surface Pro, and is also on the web version of Onenote. No issues at all.

Answer recommended by moderator

Johan 5

I did the same thing, and it works without any issues now. Everything I complained about is fixed.

Now it's just the usual thing that the iOS and computer versions are much better.

https://www.apkmirror.com/apk/microsoft-corporation/onenote/microsoft-onenote-save-notes-16-0-19127-20320-release/microsoft-onenote-save-notes-16-0-19127-20320-5-android-apk-download/download/?key=b56fa7cb3cc95e8fd011aec93fb5ef7c15c07c72

Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-03-23T09:32:26.5166667+00:00

Dear everyone, I apologize for the delayed response, and I would like to sincerely thank Johan for sharing this idea.

Based on the confirmations from multiple users, I have recommended Johan’s suggestion as the proposed answer for this issue, as it has proven to be effective for many. I am truly sorry for the inconvenience this has caused, and I understand how disruptive this situation can be to your daily work. For now, please consider using this as a workaround while we wait for Microsoft to complete their investigation and provide an official fix.

Once again, thank you all for your time, patience, and contributions. It is genuinely encouraging to see the community come together with thoughtful troubleshooting and support, this kind of collaboration truly makes a difference.

Please feel free to continue sharing any additional findings or updates.
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-04-13T10:59:34.2533333+00:00

Hi Justin Adams, I noticed your comment below. Just wondering if you’ve had a chance to try the option suggested by Johan, as some users have confirmed it worked for them.
Justin Adams 15 Reputation points

2026-04-13T11:11:14.56+00:00

I've tried them all..no success
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-04-13T11:33:09.75+00:00

Hi Justin Adams, at this point, rolling back to an older version of OneNote on your mobile device unfortunately does not help resolve the issue.

Since this may require deeper investigation from the backend and the affected device, it would be best to contact your IT admin and have them raise a support ticket with Microsoft so the support team can assist further.

Sorry for the inconvenience and thank you for your understanding, from the forum side, my access is limited when it comes to backend‑level troubleshooting.
Justin Adams 15 Reputation points

2026-04-13T11:42:23.1966667+00:00

they have done it. two questions 1) why did one note stop supporting rotation in the app in the first place? having done that why are they no stopping the onetastic add on which worked fine solving that miss step? 3) why cant one note and samsung co-ordinate so that your wonderful tool is working on the only phone with a decent pen option as it used too...its just so frustrating i have moved from a real advocate getting huge value from this to really frustrated user
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-04-13T13:49:38.3866667+00:00

Hi Justin Adams

I’m really sorry to hear how disappointing this experience has been.

However, to be fully transparent, as a forum moderator, I don’t have visibility into product design decisions or third‑party add‑on compatibility (such as Onetastic), nor do I have access to investigate coordination between OneNote and specific device manufacturers. Unfortunately, I don’t have sufficient information from the forum side to address the “why” behind the changes you’ve mentioned.

You may consider submitting your feedback directly with the product team via the Feedback Portal, where it can be reviewed by the appropriate engineering teams: https://feedbackportal.microsoft.com/feedback/forum/c06dcc30-2e1c-ec11-b6e7-0022481f8472

Appreciate you taking the time to share your experience.
Mohd Faizul Irwan Bin Mohd Razali 0 Reputation points

2026-04-14T02:04:59.0333333+00:00

FYI,
My issue has yet to be resolved.
Feel frustrated. Hoping MS and Samsung will work this issue ASAP.
Tom 25 Reputation points

2026-04-14T02:46:15.0333333+00:00

Mohd, have you installed the previous version provided above?

3 additional answers

Your answer

Johan 5 Reputation points

2026-03-11T10:06:55.37+00:00

I have a similar problem, but with the Samsung Tab S10 Ultra. When I write, it often works fine, but sometimes when I later move the screen, what I have drawn moves with it. The worst is when I try to erase; it almost always takes several attempts before the line disappears, and sometimes it doesn't work at all. I have to start drawing and then erase again, and then it works. Moving drawings with the selection tool also lags incredibly much. If you click undo, the whole page has to reload. I think this started after a Samsung update, but I'm not sure. I have tried reinstalling, which helped for a little while. Clearing cache/data, which doesn't help. Restarting the tablet doesn't help. I have closed all notebooks except the one I am working in, which makes no difference.
Version on onenote: 16.0.19725.20156
One UI-version: 8.0
X920XXS7CZB5
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-03-16T10:07:52.2466667+00:00

Hello Johan

Thank you for your feedback, and please accept my apologies for the delayed response. Based on the feedback shared by Shehan below, I recommend reviewing the battery settings for OneNote and changing the configuration from Optimized to Unrestricted. This adjustment has proven to be effective in resolving the issue in similar cases.

Please let me know if this helps or if you require any further assistance.
Tom 25 Reputation points

2026-03-20T12:39:02.08+00:00

@Gabriel-N I have just tried changing the battery setting on my new S11 Tab Ultra, and it does not work.

When typing, it is very laggy, and if you are typing at a normal speed, will often take a full word to catch up. At times, you can apply a full stop and it will appear in the middle of the word you just typed. And when using del/backspace several it will pause, then delete several words all at once.
Tom 25 Reputation points

2026-03-20T12:48:45.4533333+00:00

To add to my previous comment.

This is a S11 Tab Ultra with Onenote version 16.0.19725.20156, using the Book Cover Keyboard Slim.

I've tried the battery optimisation change, cleared the cache, reinstalled the app, unlinked sync with Samsung, and it is still very laggy as per the above symptoms.
Johan 5 Reputation points

2026-03-20T12:59:33.24+00:00

Hi.

I tried changing it to unrestricted and it helped a bit. Erasing works almost all the time now, and what you draw doesn't follow the screen as often anymore. But the selection tool is still very laggy, though better.
Tom 25 Reputation points

2026-03-20T13:12:12.5633333+00:00

The only way I have found to reduce the lag is to reinstall the previous APK for app.

APK version 16.0.19127 October 31 2025 from Apkmirror - architecture; arm64-v8a

This reduced all lag and the keyboard now works correctly.
Max 20 Reputation points

2026-03-22T04:48:10.0366667+00:00

I have the exact same problem. Out of the blue today, words are dragging on the screen with touch movement, erasing is incredibly laggy, and the app as a whole is very slow. I am using OneNote on a 2 year old galaxy tab s6 lite. I tried clearing cache, reinstalling app, restarting tablet to no avail. I probably will finally stop using OneNote after this, its always being so laggy and causing me to lose work, and now I've had to spend the whole day trying to fix this device during exam season.
Tom 25 Reputation points

2026-03-22T06:26:06.4766667+00:00

Max, I rolled back to a previous version and it is now perfectly fine again. Version 16.0.19127.20320 (arm64-v8a) if that helps.
Pieter Karunia Deo 0 Reputation points

2026-03-22T14:31:00.1433333+00:00

I also have same problen. using on redmi note 13 pro +. Lagging and it start to disturbing me.
Max 20 Reputation points

2026-03-22T20:14:13.77+00:00

Thanks Tom, just wondering if you still experience normal syncing functionality after rolling back? no issues with retaining recent user data? I will back everything up and give it a try
Tom 25 Reputation points

2026-03-23T07:32:46.0333333+00:00

Max,

I've just checked sync across my devices. I added a page on my Samsung with the older APK.

It syncs fine with my Android phone, Surface Pro, and is also on the web version of Onenote. No issues at all.
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-03-23T09:32:26.5166667+00:00

Dear everyone, I apologize for the delayed response, and I would like to sincerely thank Johan for sharing this idea.

Based on the confirmations from multiple users, I have recommended Johan’s suggestion as the proposed answer for this issue, as it has proven to be effective for many. I am truly sorry for the inconvenience this has caused, and I understand how disruptive this situation can be to your daily work. For now, please consider using this as a workaround while we wait for Microsoft to complete their investigation and provide an official fix.

Once again, thank you all for your time, patience, and contributions. It is genuinely encouraging to see the community come together with thoughtful troubleshooting and support, this kind of collaboration truly makes a difference.

Please feel free to continue sharing any additional findings or updates.
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-04-13T10:59:34.2533333+00:00

Hi Justin Adams, I noticed your comment below. Just wondering if you’ve had a chance to try the option suggested by Johan, as some users have confirmed it worked for them.
Justin Adams 15 Reputation points

2026-04-13T11:11:14.56+00:00

I've tried them all..no success
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-04-13T11:33:09.75+00:00

Hi Justin Adams, at this point, rolling back to an older version of OneNote on your mobile device unfortunately does not help resolve the issue.

Since this may require deeper investigation from the backend and the affected device, it would be best to contact your IT admin and have them raise a support ticket with Microsoft so the support team can assist further.

Sorry for the inconvenience and thank you for your understanding, from the forum side, my access is limited when it comes to backend‑level troubleshooting.
Justin Adams 15 Reputation points

2026-04-13T11:42:23.1966667+00:00

they have done it. two questions 1) why did one note stop supporting rotation in the app in the first place? having done that why are they no stopping the onetastic add on which worked fine solving that miss step? 3) why cant one note and samsung co-ordinate so that your wonderful tool is working on the only phone with a decent pen option as it used too...its just so frustrating i have moved from a real advocate getting huge value from this to really frustrated user
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-04-13T13:49:38.3866667+00:00

Hi Justin Adams

I’m really sorry to hear how disappointing this experience has been.

However, to be fully transparent, as a forum moderator, I don’t have visibility into product design decisions or third‑party add‑on compatibility (such as Onetastic), nor do I have access to investigate coordination between OneNote and specific device manufacturers. Unfortunately, I don’t have sufficient information from the forum side to address the “why” behind the changes you’ve mentioned.

You may consider submitting your feedback directly with the product team via the Feedback Portal, where it can be reviewed by the appropriate engineering teams: https://feedbackportal.microsoft.com/feedback/forum/c06dcc30-2e1c-ec11-b6e7-0022481f8472

Appreciate you taking the time to share your experience.
Mohd Faizul Irwan Bin Mohd Razali 0 Reputation points

2026-04-14T02:04:59.0333333+00:00

FYI,
My issue has yet to be resolved.
Feel frustrated. Hoping MS and Samsung will work this issue ASAP.
Tom 25 Reputation points

2026-04-14T02:46:15.0333333+00:00

Mohd, have you installed the previous version provided above?

Answer 1

Johan 5

OneNote just got a new update so I tested it. The problem is still not solved. How can Microsoft still not have fixed this issue that has been known since January?

So I just had to uninstall again and install the old update again.

0 comments

Answer 2

Gabriel-N 17,785 Microsoft External Staff Moderator

Dear Justin Adams

Thank you for reaching out to the Q&A forum, and I’m sorry for the inconvenience you’ve encountered. Also, thank you for being such a dedicated OneNote user, I’m sure Microsoft is honored to have you as an avid supporter.

To better assist you, could you please help clarify a few things?

1> What exactly are the symptoms of the lag you’re experiencing? For example:

Does it take a long time to load files?
When using the S Pen, do the strokes lag or not follow the pen smoothly?
Are there delays when typing, scrolling, or switching pages?

2> You mentioned you’ve tried “all the usual fixes” , could you list what you’ve already attempted? (e.g., clearing cache, reinstalling the app, updating, etc.) so I don’t suggest steps you’ve already done.

3> When you say you installed a Samsung update, was it a One UI update? If so, which version are you currently on? I also found some reports indicating that after updating to One UI 7.0, Microsoft Office apps (including OneNote) may lag or fail to open. You can refer to this thread for more context and two workaround suggestions: Samsung OneUI 7.0 update causes WORD to not open – Microsoft Q&A

Additionally, there’s a recent report about OneDrive app V7.45.1 (Android) not working with Android OS 16 on the SM-G736U (Xcover 6). Since OneNote stores data on OneDrive, this might be worth checking as well.

Could you confirm whether your OneNote files have been synced to the cloud (OneDrive) during your troubleshooting? This is important to ensure no data is lost.

Lastly, could you please provide the following details so I can investigate further?

The exact model of your Samsung Ultra device (e.g., S22 Ultra, S23 Ultra, etc.)
The type of account you’re using with OneNote (e.g., personal Microsoft account or work/school account)
The current version of the OneNote app
Your device’s Android version and One UI version

On my side, I’ve tested OneNote on a Samsung S25 Ultra and it’s working normally, even the S Pen input is smooth. Please share the additional details above so I can help you more effectively.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-02-02T14:08:01.37+00:00

Dear Justin Adams

Just writing to see how things are going with this issue.

Have you had a chance to check the replies provided?

Any update would be appreciated.
Shehan Weeraratna 10 Reputation points

2026-03-16T03:04:35.9+00:00

I have got the exact same issue on. my galaxy tab s7. Been using it no issues for over 3 years and am well and truly invested in the Onenote ecosystem. I am on One UI 5.1.1, Android 1, last Google Play System Update was 1/02.

The drawing with the s pen is smooth, that is not an issue.

However, I have similar issues with erasing being laggy and sometiems not working, and similar issues with moving around the canvas not happening smoothly at all. I have had a really laggy select tool for years, but hasn't been much of an issue as the core functionalities have been perfect until today - last used 3 days ago so something in between has changed.

S-pen works perfectly fine on Samsung Notes, so is definitely a Onenote issue.

Have tried clearing data and resigning in, restarting, to no avail.

A fix would be greatly appreciated as I well and trult rely on Onenote for my studies.
Shehan Weeraratna 10 Reputation points

2026-03-16T04:54:32.33+00:00

Was stuffing around and went into the battery settings for Onenote, changed it to unrestricted from optimised and this seemed to make a pretty big difference. Wonder if maybe an update happened which changed that setting. Not too sure, but glad its fixed
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-03-16T10:05:09.03+00:00

Dear Shehan Weeraratna

Thank you for sharing your feedback. This is a valuable new insight and an important observation that may help explain and resolve this issue for other users experiencing similar behavior. Your contribution is greatly appreciated and will certainly be helpful for further investigation and troubleshooting.

I’m glad to hear that the issue has been resolved on your side, and thank you again for taking the time to share your findings.
Max 20 Reputation points

2026-03-22T05:01:20.47+00:00

I tried changing the battery setting and I see only marginal improvement. Still significant lag in precisely the same form as described in the original post: erase function doesnt work readily, written words sometimes drag with touchscreen movement, pen color changes dont update etc. I am on a galaxy tab s6 lite with version 16.0.19725.20156 of the app. The lagging issues just started today. I also tried clearing cache, restarting the tablet, reinstalling OneNote, closing all unused notebooks, and freeing up extra onedrive storage with no success. On my laptop, I dont have any of the lagging issues under the exact same personal microsoft account.
Pieter Karunia Deo 0 Reputation points

2026-03-22T14:32:43.5433333+00:00

same problem on here. I am using on 2 android phone and lagging. Seems one note problem is real.
Mohd Faizul Irwan Bin Mohd Razali 0 Reputation points

2026-04-03T11:01:39.8066667+00:00

I'm using Galaxy 26 Ultra and having the issue of lagging and not able to swipe the page while writting using stylus.

When I swipe using my finger the line appear as if my finger is the s-pen. My previous Galaxy S23 Ultra just fine.
Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator

2026-04-03T14:14:20.3566667+00:00

Hi Mohd Faizul Irwan Bin Mohd Razali

Have you had a chance to try Johan’s method, which other users have confirmed is working?

Answer 3

It sounds like you're experiencing performance issues with OneNote on your Samsung Ultra device. Here are some steps you can take to troubleshoot and potentially resolve the lagging issue:

Clear Cache: Go to your device's settings, find the OneNote app, and clear its cache. This can help improve performance.
Update OneNote: Ensure that you have the latest version of OneNote installed. Check the Google Play Store for any available updates.
Check for Device Updates: Sometimes, system updates can improve app performance. Go to your device settings and check for any available updates for your Samsung Ultra.
Reboot Your Device: Restarting your phone can sometimes resolve temporary issues and improve performance.
Reinstall OneNote: If the problem persists, consider uninstalling and then reinstalling the OneNote app. This can help if there are any corrupted files causing the lag.
Free Up Storage: Ensure that your device has enough free storage space, as low storage can affect app performance.
Check Background Apps: Close any unnecessary apps running in the background that may be using resources and causing OneNote to lag.

If none of these steps resolve the issue, it may be worth reaching out to Samsung support or checking forums for any device-specific issues related to OneNote performance.

References:

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One note suddenly lagging on samsung ultra

3 additional answers

Your answer