Mario Galaxy Suddenly Running Horribly

[Kurausukun]

So I started a new SMG file for the first time in a while, and I noticed the speed was absolutely terrible. Like, well below half speed sometimes. I think it may be some setting I have enabled because I clearly remember being able to play the game with only a tiny bit of lag at 2x IR at an earlier point, and now this is happening at 1x IR. I'm attaching my config files (in a .zip because the site hates .inis) because I think that's probably where the problem lies. I know my specs aren't the greatest, but I should at least be able to run Galaxy at full speed on 1x IR, right? I've already tried turning on/off the Vsync, and OpenMP decoder (I usually have them both on).