My PC is good. Here I'm talking about video filters in quick menu not shaders. Dude I'm a retro gamer I have all the best cores. my favorite game is ys book 1&2 So im a pretty audio maniac. I have SRS sound for PCenabled. I couldn't select or change the default option in the retroarch.. the only thing that retroarch beginners notice is enabled v sync..& 4:3. The snes9x standalone can do all that with better difference in many video filters and ability to manually choose the audio device. And in quick menu shaders i don't use them cause my monitor is lcd and glare free. the best shader mankind like is bi linear filtering it does that. Also Epx a,b etc., filters available in standalone snes9x which look good for night games like zombie ate my neighbors.