N64 emulation problems, advise please

For some reason my N64 emulator only runs at 30fps and the sound and graphics are distorted, and games are unplayable. I usually get games running at 60fps. Any ideas? Which setting could i check?

which core are you trying to use? If you hit spacebar, does it go >60 fps?

Mupen Plus64 Next i will try that. I have had 60fps before no problem.

it goes to over 100fps then, that speeds things up.

ok, that means that something is messing with your sync somewhere, whether it’s within RetroArch or something external. To help determine that, can you temporarily move your retroarch.cfg somewhere else and let it make a new one with default options. If it runs at normal speed then, you have a bad setting somewhere. If it doesn’t, you can put your old retroarch.cfg back in place and try moving your retroarch-core-options.cfg. If that doesn’t help either, it’s probably not something related to RetroArch or the core options and is probably something external.

I know it works, as ive had N64 games running at 60fps.

The SNES and Megadrive games run fiine