Bad picture quality vs Plex

I am using newest Infuse Pro on AppleTV 4K. I just tried playing a 1080P movie (I Am Number 4) and the picture was blocky with washed out blacks. I thought it was a bad file. I switched to my Plex app and it looked beautiful. I tried to find picture setting for Infuse but there aren’t any. Why is there such a huge difference in picture quality. I thought this was all addressed previously. Anything I can do to fix this? I notice the same thing for TV shows recorded from my Plex DVR.

Welcome to the forum!

Can you check to ensure the Match Content options are enabled on your Apple TV, as described here?