PlayStation 5 Stuttering (not buffering, stuttering) when Direct Stream / Direct Play is enabled

Server Version#: 1.32.6.7468
Player Version#: 5.68.2

Problem:
This week I setup the plex app on my daughters PlayStation 5 so she can watch some stuff in her room. What we have noticed is that plex on the PlayStation 5 will stutter/jitter the video. It appears like frame drops and the video is just to jittery to watch. The experience is what I would best describe as frame stuttering and is NOT buffering. The video stream itself NEVER stops, it just stutters along.

The PlayStation has a direct wired connection to router on the same subnet as the plex server. Its most noticeable with 1080p x265 HEVC Main 10 which is then transcoded to 1080p x264 when Direct Stream / Direct Play is disabled.

Workaround:
We’ve found that if we disable Direct Stream & Direct Play that plex server will then transcode the video which solves the stuttering problem. This is not ideal as we’d rather stream locally on our network with original quality, however, it is a workaround and so far appears to work fine.

Comments:
I’d assume the problem is probably with the PlayStation 5 itself and whatever bundled codec they include with the PlayStation 5 OS which the plex app is most likely forced to use. If this is not the case then does anyone know what is the issue ?

Also, is there another solution to this problem or is just disable Direct Stream & Direct Play the best we can hope for with the PlayStation 5 plex app.

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