Final Fantasy Type-0

[Akiba021]

First off, I'm like twenty hours into this game. I've been playing it non stop for days. And suddenly my emulator crashes every time I walk into one of the zones. Anyway, any tips would be appreciated. This is pretty much the only game I've emulated on PSP, and I just started a few days ago. I was getting a lot of slowdown at points where text would come up, but that's all but gone away(with the exclusion of entering the arena, where it slows down until the "Arena" tag at the top disappears). First post on here. Any ideas on good performance/stability settings?