@stealthbushido increasing resolution via launch menu won't help PSX - the underlying emulator renders at a resolution set internally. you can adjust it via: https://retropie.org.uk/docs/Playstation-1/#video-double-internal-resolution
alternatively you can apply shaders: https://retropie.org.uk/docs/Shaders-and-Smoothing/- i say alternatively, because you wouldn't want CRT shaders AND double resolution, as by doubling the resolution you would ruin the scanline effect and it would look a mess. however the video smoothing effect would be fine to apply.