Hi!
I have been using XBMC/Kodi on many devices during the last couple years, lately my main box is an Amazon Fire TV gen.1.
Although everything kind of works I haven’t been able to achieve smooth playback with either SPMC (playback is almost ok, refresh rate switching works, video stutters once in a while though) or Kodi 17 (playback is choppy and stuttering, screen tearing on the bottom left corner).
I use audio passthrough to a Denon AVR.
What would really interest me is if anyone is using an AFTV1 and is getting consistent smooth playback with this system…