Mario Sunshine random lag

Wamphyri · (This post was last modified: 08-21-2015, 08:03 AM by Wamphyri.)

I am trying to play SMS but am having quite a lot of slowdown while talking to NPC's, screen transitions, and even randomly for seemingly no reason at all. I will leave the game idle without moving for 20 seconds and the emulator speed will drop to 80% but right when I open the graphics config menu the speed will go back to 100% for about 30 seconds. I have the graphics and sound set up as the wiki states and AA turned off. What could the problem be?

i7 4790K
gtx 780
8gb ram
Win 10

Thanks