Video stutter with local media Vc-1 or mpeg-2

I’m running channels DVR on a qnap nas version 2021.10.25.1801

I use Apple TV 4k

When I watch my local media 4k h.265 or Blu-ray h.2.64 everything played fine

But when I watch any video with
mpeg-2 or Vc-1 it plays fine for a while then starts to stutter.

Please submit diagnostics in your app after you've seen the problem with playback. Report back here to let us know you've done this.

Just submitted diagnostic

I keep submitting Diagnostics for this issue

Update: tested on nvida shield and same issue.

iPad and iPhone everything plays fine

Does it happen with settings > Playback > Advanced > Video Driver: Default

Yes just tested and same issue. I submitted diagnostics

Has anyone looked at the logs I have been submitting

Please try the TestFlight beta app and change your Audio Driver to Experimental

How do I get the test flight beta app

Click the button on