I recently bought a Vita, using store-credit and tons of trade-ins (like, 10+ PS3 and PSP games). Some of the PSP games I've been playing on it have shown marked improvement--Maverick Hunter X's moments of slowdown are nonexistant, and Def Jam Fight for NY runs at 60 fps instead of the usual 30 (!!).

So what I want to know is: have any Vita owners seen similar boosts in performance with their PSP games? I'd like to keep a list if possible.

You can do the boost yourself on a PSP by installing CFW on the PSP then in the recovery menu you now have access to swapping the CPU speed to 333mhz instead of 222mhz.

There, smooth GTA ;)

The PSP was downclocked for most games to 222mhz, it was capable and used 333mhz speed for a few of the later 1st party releases.

I'm interested to know, as well, and if there are any that are worse on the Vita. I bought mine not just for Vita games but also for PSP games, as I've never had one before.

Dual analogue. I cannot imagine playing Gods Eater in claw position, and I'm sure there will be more to come as I download more PSP games.

(I know this isn't really what you were asking, I just wanted to contribute!)