I've been trying to compare various SNES emulators on the Raspberry Pi 2 and really like the snes9x-next core for RetroArch, mainly because the audio sounds so much better. But the one thing that bothers me is more prominent slowdowns in specific areas of certain games. For example, near the very beginning of Super Ghouls and Ghosts when the enter the two caves with the fire creatures. I haven't noticed as much of a slowdown with other emulator options.
So I enabled the framerate dispaly via the retroarch menu and even when considerable slowdowns occur it's still showing a rock solid 60fps. Can somebody explain this?