If we were to port over a PSP emulator, it probably wouldn’t be a Retroarch core, but a standalone such as ppsspp. At least on my RPi 3 (over clocked), although a PSP emulator will run, it run fairly terribly. As a comparison point, I compare the CPI to be about as powerful as a raspberry pi 3. As far as I know, the gameshell isn’t powerful enough to run PSP.
