By limiting the data rate from Vita USB to or below 330 mbps (Depend on your PC USB chip-set), it allow locked 60 fps for all games (Tested on POT Player).
How to limit the data rate? Keep the resolution to 896 x 504 or lower.
Source code based on xerpi code with little modification)
Note...
@Maximumbeans, Indeed. I've been working on getting this Infecutus chip to work on my PS2. But after soldering, I realised that a plastic piece was missing from the power ribbon cable to the power and eject buttons.