Hi @balbes150..
Very nice work on the images / mpv !!
I just received a ROC-RK3328-CC (Renegade) from libre.computer (firefly), and tried out your build on it which runs smoothly at 1080p.
I also tried out the newest build from LibreELEC and kodi which actually runs 4k60fps perfect too.
With your image 4k60fps has a lot of dropped frames, but do you think there's a chance it could match LibreELEC/kodi playback?