I have an HP laptop running Windows 7 SP1 and for some reason, it's lagging a lot when I try to play Legend of Zelda - Twilight Princess on Dolphin 5.0. My other game, Soul Calibur 2 works just fine; running between 52 to 60 fps almost constantly, but twilight princess usually dips between 21 fps to 35 fps and it causes the audio to lag a lot. I'd be okay with the slight frame drops if it weren't for the audio sounding like I'm trying to rip apart tin foil. Any help? Thanks.

Processor: AMD E2-7110 APU with AMD Raedon 2 Graphics
Ram: 4 GB
64-bit OS