Nope no dice. It looks like its dropping frames doesn't report that it is. I've just tried an AI Enhanced version of Wolverine Deadpool and I can notice the smooth motion immediately. At the same settings reported at 60FPS (Rife) it doesn't look smooth. If I turn on the OG frame interpolation, again I notice it (and the artifacts straight away).
I'm coming close to doing a clean windows install at this point.
I wonder if that enhanced version is my doing? ;D DirtyHippie
Sorry you are having issues with RIFE not interpolating as it should.
If I set MPC-HC to exclusive fullscreen and lock it to 60hz, it seems to play more smoothly from my PC. I always transcode the movies to 60fps, then play them from my android tv using KODI, as for some reason it plays better than from my PC. Another reason I prefer playing the transcoded movies from my TV is I can use true Dolby Vison vs the tone mapping from MPC Video Player in MPC-HC via Windows.
I don't think your issue is due to not having exclusive fullscreen set. Just though I'd share what I have discovered about that.