Any Ways to Push Out that Last Bit of Performance?

[Yoshiblade]

On my current pc, here are my specs:
Intel Atom N270 1.6ghz
Intel GMA
1 installed GB of memory

I been running Kingdom Hearts 2 for the past few days, averaging about 19 fps out of battles. I haven't messed with much other than the speedhacks, so I'm wondering whether I can push out just a little bit more performance out of the game. And yes, I know my specs are bad. But I've already covered that subject.

Thanks

__________________
"You're wrong. My power doesn't come from my keyblade. It comes from inside; my friends. I'm not a heartless--I'm Miles Prower. And you, Xehanort, are just a pile of darkness. So how about I destroy you first!?"