The GameCube port is like that sadly.Today I was messing with some Gamecube games with nintendont (vWii) but I noticed occasional frame drops... for example Crash Bandicoot : The Wrath of Cortex, occasionally suffers from low FPS, but when I watched a youtube video showing the same game it was running very smooth without any noticeable frame drops!
Does Nintendont suffer from FPS problems with some games?