No my source material is fine…
I’ve got over 1500 DVDs , Blu-rays and 4K Blu-rays ripped to my nas.
Playback is fine on a PC or my Roku streaming stick in the kitchen.
In fact the Nvidia Shield lip sync problem is a known issue.
See https://forums.plex.tv/t/lip-sync-on-shield-pro-2019/521851/46
I was just looking for an alternative…
I’m now thinking maybe a dedicated PC or, HTPC might be the way to go?