I recently started using Kodi for my linux distro collection, but some videos look terrible in comparison to when played in VLC. See attached picture with screengrabs from VLC and Kodi of the same frame in an MKV 1080p h.265 file. What could be the issue? I didn’t change any video settings in either
Kodi has an default video player which may can’t decode your h265 video well.
You could try to set an external player to get better results.
Be aware, I haven’t tried that, it’s just an Idea.
https://kodi.wiki/view/External_players