Here is a tweak that I have used on several Android devices, called V6 SuperCharger. I am posting this for both developers and for the Infinity users that have problems with I/O and read/write speeds. I am unsure if it will assist with the I/O issues that the Infinity is experiencing.
This can be ran in the background as a script and can also be embedded into a ROM. It has many tweaks and the wall of text can be confusing at first. Read everything and although you can do everything manually its best to let it do it automatically. Since the Infinity uses ICS it will only boost it by 50% supercharge. You will need to be rooted for the other 50% supercharge. Everything can be reverted.
New version update 07-15-12. No longer a test, please see if it will pass without bootloops, they have been fixed.
Please read everything in full.
Use the full releases and not the Test releases
Use the v6 and not the experimental v8.
DO NOT have your launcher locked in memory.
All thanks to zepplinrox for his work and frequent updates, please donate