Secret Agent Clank

[rmcin329]

Game is working great in version 1.0.1 607-ga5cfd1a 64 bit version. I'm running on windows 7 professional 64 bit. I get slight lag from time to time, but otherwise seems to run fantastic. Mostly it lags a bit when say Ratchet is fighting a particularly large amount of enemies at the arena, though that is easily solved by killing 2 or 3 of them. During the Rionosis mission though I have encountered somewhat more serious lag. During the part of the game where you are on the gondolas and there is the helicopter flying around plus a lot of enemies coming after you the game seems to constantly run at between 85-95% with occasionally being at 100% though that lasts all of 1 second before dropping again. I've tried both direct3D and openGL both run about the same speed at that area. Frame skipping ends up making things quite choppy and makes things drastically worse on any setting for it. Any suggestions for what I can try settings wise? Rendering resolution is set to auto. Rendering mode is set to buffered as that is the only one that doesn't encounter glitches with the game. All other rendering modes encounter very nasty glitches, I can go into more detail if desired.

EDIT
Forgot to mention i'm using the US version of the game. Also noteworthy, the game freezes up the emulator if I try to save a state.

EDIT AGAIN
There is also a graphical glitch going on during this part of the game, no idea if its related to the slowdowns or not, but I haven't found a setting that fixes it, screenshot below. Basically you can see something the engine flames that would normally be orange(most of them are blue), turn green when they aren't directly in Clank's line of sight. Too lazy to check if this is normal on an actual psp or not, but i'd think not.