Video plays normal in finder preview but lagging in Quicktime

Hi, I have been having issues with video playback on QuickTime for several months. After updating troubleshooting the playback is still laggy. However, the video plays normally on the Finder preview without lagging issues.

What could be the cause? Are there any options to fix this issue?

I own an older Mac. Screenshots of overview+hardware attached below.

MacBook Pro 13″, macOS 12.7

Posted on Apr 13, 2024 11:20 AM

Similar questions

QuickTime problems after upgrading to Big Sur I have many problems with QuickTime after upgrading to Big Sur my MacBook Pro (Retina, 15-inch, Mid 2014). QuickTime does not display the duration of the videos QuickTime crashes every time I close a video window When I double click a video file to watch it, QuickTime opens simultaneously all the videos that are in "Open recent" list Does anybody else experienced these kind of problems and is there a solution to it? Can Apple resolve this in a future update?
2073 9
mov files created in screenshot toolbar app will not play in Quicktime player This started happening recently on my 2022 Mac Studio. I regularly use the screenshot toolbar app to capture video and audio of what's happening on my desktop. Screenshot creates a .mov which I normally don't have any issues playing. Now, for some reason, when I open the screenshot created .mov file, it will open but will not play, it's frozen right at the start. Interestingly I can still use my mac's "preview" app and the video will play without issue. Also, it will play the same .mov’s video and audio in VLC. I am suspecting this a codec issue. The .mov files created by screenshot are using H.264 for video compression and MPEG-4 AAC, 44100 Hz for the audio which both seem quite normal to me.
99 2
Quicktime player won't launch Hi, I have a new MacAir running os 12.6. Quicktime Player stopped working, when trying to open a file or simply click on the app icon, the app doesn't launch and instead I get the application finder window. I have tried in safe mode and getting the same, also tried to re-install operating system, issue is still there. Any tip you can offer to get it fixed? Many thanks
1658 1

There are no replies.

Video plays normal in finder preview but lagging in Quicktime

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple ID.

Learn more Sign up