Hello (and sorry if I’m rehashing an existing topic, didn’t find anything when searching for x265 and can’t do a search for 4K because of sub-3 letter forum limitations),
I have obtained a 4K video encoded at 35Mbps. My TV is only 1080p, but I figured that the increased bitrate does no one any harm even if I can’t see it in full resolution.
In MPC-HC this video plays just fine. In KODI it stutters significantly. I am running it from a PC that has a Skylake Pentium G4400, 16GB RAM and an AMD R9 390, so although I don’t have hardware X265 decoding support, I think it should work just fine with 40-70% CPU usage (which is what I get when I view it in MPC-HC).
So, any ideas? 
Is there some specific setting I should check?
Thanks in advance!