Since the new installation came out, I’ve noticed that a few roms don’t run quite right. Mostly Mario roms (NES and SNES), but also Kirby’s Adventure and Mega Man 3. They run slowly, like the game takes place in a thick, cheese soup.
I have the same problem since one month. Retroarch runs slower with threaded video. Seems to be a library problem. If i use older userland libs (https://github.com/raspberrypi/userland/) threaded video is faster and there is no audio stuttering.