if you are looking for speed and responsiveness man I suggest you try juggalo_x's rom, Mr. X ROM. My tp2 is so responsive even after loading a bunch of apps and crap into it. I will say at least once a day soft reset, but that's nothing to complain about at all
Here's the rom thread:
http://forum.ppcgeeks.com/showthread.php?t=91898
edit: you have been hard-resetting after rom flashes right? that helps a bunch