Hello everyone , I've been playing Super Castlevania IV on CATSFC (from Stable build 1.3.6) , but the game slow downs certain points in stages , so I have a few questions concerning speeding up emulators on RetroArch ? (I'm on N3DS) - Does enabling rewind affect the FPS in any way ? - What settings could I change to gain in FPS ? For Super Castlevania IV (and other games ?) , blargSnes is faster , thanks @TimX24968B TimX24968B's post I'll repost the best answers to original post to make this thread informative.