I found this program designed to increase graphics performance for 1ghz devices. It installs and appears to work. So far, my experience is that it makes Angry Birds Rio totally playable, and Angry Birds without the background is awesome. The only problem is that it adds a blue tone to all the birds, which is a little strange if you are accustomed to their bright red color.
Check it out here:
http://www.mobileboxs.info/android-a...re3d-pro-v1-2/
Didn't seem to improve performance much on Fruit Ninja. :-(