PCSX ReARMed on rpi4 running lakka is working over here, albeit with pathetic sub 30fps results.
Unfortunately I don’t remember what I did exactly to get everything working, but I did download a bunch of the bioses until i found I was on stable ground.
Lakka:~/system # pwd
/storage/system
Lakka:~/system # ls -lah psx
total 3586
drwxr-xr-x 2 root root 1.0K Sep 27 02:55 .
drwxrwxrwx 4 root root 1.0K Sep 26 18:44 …
-rwxr–r-- 1 root root 512.0K Sep 24 01:04 SCPH1001.bin
-rwxr–r-- 1 root root 512.0K Sep 26 18:34 SCPH5500.BIN
-rwxr–r-- 1 root root 512.0K Sep 26 18:34 SCPH5502.BIN
-rwxr–r-- 1 root root 512.0K Sep 26 18:17 SCPH7001.BIN
-rwxr–r-- 1 root root 512.0K Sep 26 18:43 scph5500.bin
-rwxr–r-- 1 root root 512.0K Sep 26 18:43 scph5501.bin
-rwxr–r-- 1 root root 512.0K Sep 26 18:43 scph5502.bin
Lakka:~/system #
So far, the only games I have are games I have discs for. So my results are:
NFL Blitz works great, runs at constant 30fps
NFL Blitz 2001 runs almost as well, dips below 30 but still playable
Syphon Filter 2 and 3 both are horrible at 15fps if not lower.
I can’t seem to break a 30fps cap either.