>>527642974
LRPS2 core in Retroarch does

It's an up to date fork of PCSX2 and even better because it has ParaLLEl-GS.

>>527656943
Enabling a shader in Retroarch isn't exactly rocket science, it's a few clicks (or button presses, because it can be controlled fully with a controller)

Retroarch unifies emulators under one design and frontend. Imagine trying to update, configure, and maintain like 20 different individual emulators, all of which lack features Retroarch has for every emulator.