full logs only please, with that log i can only speculate that you are using some variety of linux or pi based on 1 single line containing "Using device /dev/video10"
conversely pi doesnt support hardware acceleration for hevc so even that codec is going to limit your playback to around 720p in order for it to play properly
next time try not to make people guess when you are asking for help
-----
edit:
correction, im only aware that libreelec does not support hevc video acceleration on versions beyond 9.2.x - other software may be possible, i have no knowledge beyond libreelec