Plex GUI slow and temporarily unresponsive when browsing HEVC encoded movies



I have a Samsung MU7005. It plays HEVC fine, both through Netflix and Plex, but when using Plex, the GUI freezes when I hit play and becomes unresponsive for a while before the movie starts to play, leaving me puzzled to whether the app has crashed (hasnt really happened) or whether the movie will start.

The same happens when I exit the movie pressing the back button. It takes me to the movies info screen, freezes for a while before it lets me exit back to the main menu.

None of this happens with AVC encoded movies.

I know, first world problems. Still annoying though. Anyone else experiencing the same?