video lagging in Power Point

Question

video lagging in Power Point

Emmanuel Pelloux 10

hello

I have issues with recording a video in my powerpoint. the video keep lagging.

PP is updated (16.106 for Mac),the macOS is under Tahoe 26.3, and this issue appeared after a macOS update. And I have this problem even with a blank slide. Thanks for the help.

3 answers

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Answer 1

Abhay Tank 0

This issue is probably related to compatibility between Microsoft PowerPoint and macOS Tahoe 26.3. So you can try these methods like turn off hardware acceleration, clear powerpoint cache.

Answer 2

Kai-H 12,695 Microsoft External Staff Moderator

Hi, Emmanuel Pelloux

Welcome to Microsoft Q&A forum.

Sorry for this frustrating experience that you're facing. Because this started right after a macOS update, the most likely cause is that the update changed something in the Mac’s media, camera, or graphics pipeline that PowerPoint relies on, so recording becomes choppy even in a blank deck.

Here are some suggestions you can try:

Reduce competing system load before recording

Quit heavy apps (browser tabs, Teams/Zoom, screen recorders), then reboot and try again. After major macOS updates, background tasks like indexing can temporarily use a lot of CPU/GPU and make real‑time recording stutter.

Test PowerPoint in a fresh macOS user profile

Create a new macOS user account and test recording there. If it’s smooth, the issue is likely tied to your current user profile settings, caches, or permissions, not the presentation itself.

Reset PowerPoint’s preferences

Corrupted preference files can survive app updates and trigger odd performance issues. Removing the PowerPoint preference file forces PowerPoint to rebuild clean settings on next launch.

Uninstall and reinstall Office

If the problem persists across files, a reinstall replaces any damaged app components and re-registers media features that may have been disrupted by the OS update.

Lower the recording and media complexity

If you’re recording with camera, try recording in simpler conditions first (short clip, minimal animations). If your deck contains videos, re‑encode them to standard MP4 (H.264) and, if available in your build, use “Compress Media”. This reduces the decoding workload that can trigger stutter.

Hope this helps. Feel free to get back if you need further assistance.

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Kai-H 12,695 Reputation points Microsoft External Staff Moderator

2026-02-19T06:25:51.22+00:00

Hi, Emmanuel Pelloux

It has been a while and I am 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.
Emmanuel Pelloux 10 Reputation points

2026-02-19T13:43:57.2966667+00:00

Hello, Thanks for the updates, but unfortunately, that didn't work. I tried all the suggestions, but I still have the same issues.
Kai-H 12,695 Reputation points Microsoft External Staff Moderator

2026-02-20T11:13:47.26+00:00

Hi, Emmanuel Pelloux

Thanks for getting back.

In order to provide better support, can you send me some screenshots or recordings of your issue?

It would help me identify the root cause and come up with more sensible solutions.
Ian-T 7,630 Reputation points Microsoft External Staff Moderator

2026-02-23T14:06:54.6666667+00:00

Hi

If you still need any further assistance, we are here.

Please let us know
Kris Boulton 0 Reputation points

2026-03-04T21:58:29.51+00:00

I have the same problem. Have tried everything in the list above and nothing has worked.

It was smooth until a little over a month ago. It started on my older Macbook Air M2, and since then I bought a new Mac Studio, same problem.

The problem persists whatever camera I use (built in webcam, tethered usb-c webcam, continuity iPhone camera). Video is smooth if the camera is turned on in regular 'edit' mode, it's smooth when it's turned on in present mode, it's only when I actually go to record that it starts lagging - and it lags whether or not I am actually recording.

Despite the lag, when I export the mp4 file the video is fine, but it makes recording much harder since animations and slide transitions also lag.

Since all animation lags and stutters while in record mode, the issue seems to be more with the 'record mode' itself than the camera; in fact, I've realised while writing this and testing a few things that the problem isn't with the camera at all, it's just a problem with record mode and how it renders the presentation.
Kai-H 12,695 Reputation points Microsoft External Staff Moderator

2026-03-05T06:48:28.7833333+00:00

Hi, Kris Boulton

What you’re describing fits a “preview/render path” problem in PowerPoint’s Record mode, not the camera, because everything is smooth until Record mode takes over, and the exported MP4 comes out fine. This points to how Record mode renders the live canvas (slides, transitions, timing UI) under Tahoe, rather than any specific webcam.

You can try these options:

Bypass Record mode entirely, capture the slideshow with a different recorder

If Slide Show playback is smooth, record the screen while presenting (Teams recording, or a third‑party screen recorder). The “Self Recording Guidance” doc explicitly calls out using different recording tools (PowerPoint recording, Teams recorder, third‑party like Camtasia) depending on what works best. This avoids the Record-mode renderer while still capturing clean playback.

Split capture, record slides and camera separately, then combine

That same guidance recommends mixing tools when needed (for example, screen recording plus a separate camera recording). Separating the camera feed from slide rendering reduces what PowerPoint has to render live in Record mode, so transitions and animations stop stuttering while you speak.

Reduce macOS GPU workload as a temporary mitigation

Some Tahoe performance issues are tied to GPU and UI rendering. Turning on Reduce Motion and Reduce Transparency can lower the GPU load and may make Record mode usable again because it’s heavily UI-driven.

Last resort, isolate Tahoe itself

If this started after the OS update and reproduces across two Macs, testing on a Sequoia partition, or reinstalling macOS over the top, can confirm it’s Tahoe’s rendering stack.

Answer 3

If you're experiencing video lagging issues in PowerPoint on your Mac, especially after a macOS update, there are a few steps you can take to troubleshoot the problem:

Check System Resources: Ensure that your Mac has enough available memory and CPU resources. Close any unnecessary applications that may be running in the background.
Optimize Video Format: Make sure the video format you are using is compatible with PowerPoint. Sometimes, certain video formats may cause performance issues. Consider converting the video to a different format if necessary.
Update PowerPoint: Although you mentioned that PowerPoint is updated, it's worth checking for any additional updates that may have been released since your last update.
Test with Different Videos: Try using a different video file to see if the issue persists. This can help determine if the problem is with the specific video file or with PowerPoint itself.
Adjust Playback Settings: In PowerPoint, check the playback settings for the video. Ensure that it is set to play automatically or on click, depending on your preference.
Remove PowerPoint Preferences: Sometimes, corrupted preferences can cause issues. You can try removing the PowerPoint preferences file to see if that resolves the lagging issue. This can be done by quitting PowerPoint, navigating to the Preferences folder, and moving the com.microsoft.powerpoint.plist file to the desktop.

If the problem continues after trying these steps, you may want to consider reaching out to Microsoft Support for further assistance.

References:

Emmanuel Pelloux 10 Reputation points

2026-03-06T13:58:27.76+00:00

Hello,

If I may clarify, no update has fixed the problem. I just wanted to point out that there's a lag when recording occurs, when I view it in PowerPoint, but it disappears when the file is converted to MP4, for example, during playback.

Thanks for the help

Emmanuel

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video lagging in Power Point

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