Pure Insanity

Pure Insanity is a modpack that aims to make shaderpacks playable by adding lots of performance mods to create a more smooth, playable experience. Pure Insanity adds many shaders for you to try out as well, they're bundled in, feel free to expand with your own.

If you have trouble running shaders, then Pure Insanity can possibly help you get better FPS with the optimization mods.