[quote=64156]Noticing quite a bit of lag on snes games such as doom … I know it’s not due to the Pi’s processing power as it runs the freeware version of Doom that comes pre-installed with RetroPie runs just fine …
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Just fyi, that logic is incorrect. Freeware doom was ported to the Pie so it runs natively and it is a fairly light application. The SNES version of Doom is probably on of the worst versions of the game and you are emulating the SNES, which already does not run at fullspeed most of the time to play the game. Not the same.