Here the choices:
PlayZ: Plays direct, does subtitles, even lets you choose aspect ratio., But really bad UI
Xplay: Nice UI, plays direct. But ALWAYS messes up aspect ratio for movies (anything different resolution from 1920 x 1080) and end up with aspect problems or a zoom factor so you cant see the entire picture
PLEX official client: perfect UI, perfect aspect ratio (always "original"), BUT no direct play
So since my box is not able to transcode fast enough for 4K or 1080p then only PlayZ work to show what one would expect without lag.
Not good enough, LG..
Is there a fix coming ?