Playback Issues on Jellyfin – Need Guidance on Fixes

[collide]

OK, just tried the following:

For 'The Good Place' TV Show, it's showing pixelated every 20 seconds-ish.. It happened a handful of times during the playback in the first few minutes. When I play this in my VLC player, there is no pixelation at the same parts in the show. Here's the log:
https://pastebin.com/JSL1ExmS

For Hook - on my Roku device - there is pixelation immediately, here is the log:
https://pastebin.com/GwN87Nbj

Life Stinks - on my Roku device - there is pixelation immediately, log:
https://pastebin.com/Hcgt7B61

and for Hook on my iPhone device - where it's freezing the frames when I play it but the audio still plays here's the logs:
https://pastebin.com/Kr0DjYnN
https://pastebin.com/gVTwS5Hy

Star Trek Into Darkness - on my iPhone where it freezes as well:
https://pastebin.com/vKKVFzT8
https://pastebin.com/yJChyeJC