I’ve tried GBA, FC, SFC games on my gameshell, and they perform well. But when I used PCSX ReArmed core to play Resident Evil 3 PSP version, the FPS is quite low, and sound track crackles. Even for Metal Slug 2 MAME version, the FPS drops occassionally. I saw video that someone played PSP games like Ridge Racer on gameshell. Is there any tutorial on how to twist RetroArch configuration for better performance, please? What’s the performance limitation of gameshell? Can it even handle PSX games?