>>11873558
Hello, fellow macfag!
>5 year old mac
>lagging and shit
LOL, don't be silly. Emulating 2D retro games is not very demanding. Anyway, the best emulator I can recommend is called Openemu. It's mac exclusive and multi purpose, meaning you have all consoles and stuff in one app, it comes with built in shaders and other features too. It's like retroarch but actually designed for a real computer and by a person who's not a complete autistic spastic insisting on making the UI as shit as possible on purpose.