Tweaks for 1 GB systems

I just had a play session after applying the tweaks found in this thread on the official forums. They seem to work pretty well, so I wanted to share them with you.

I could pretty much walk around in a pretty large area without any stuttering after it had loaded (which, admittedly, takes a lot of time). Yeah, when entering new areas it would pause, but after that, it would be okay. I reccommend spending the game exploring a certain area until you're ready to visit the next, anyway, since that seemed more fun to me.