Framerate / Sound Skipping Problems (Wii Emulation)

[Painis Cupcake]

I am getting the same problem with the audio that the OP is getting. The game I am playing is Fire Emblem: Radiant Dawn, and until recently my game ran just fine with no audio problems at maximum performance settings. Now my audio stutters at a headache-inducing level, and the FPS slows down significantly. (It used to get between 50-60 FPS, but now it gets 20-40 FPS) I've tried to use the settings that were suggested, but my audio and FPS still remains the same. My PC is not a "gaming" PC, however it can run other games at Medium-High graphics settings with good FPS. I've tried searching all over the internet for a couple of days now, and I have asked around on a couple of other forums with no luck.