In the compatibility list, I se:
Persona 2: Innocent Sin (J)
Persona 2: Eternal Punishment (U)
But I haven't tested these games myself, so don't know if specific settings are required.
You can try this, in the fpse.ini (or in the CONFIG files of your game, but after start the game from its shortcut in PSonegames)
not working? Go back to 0 and try: