I can concur this port is pretty good, just played night one a bit ago, it's a nice little port of it if you don't have it on mobile or switch, i love it
Not sure about other models of Pi4 but the Pi 4 B with 8GBs OCed to 2Ghz handles PSP really great except like 1 game I found and it is playable it just looks bad lol Motor Storm Arctic something or other.