Pack doesn't go over 2 FPS, my pc isn't very good, but I have no problem running other packs, it wouldn't be so bad if I could add Optifine, but one or more mods in the pack cause a crash when Optifine is added. I had high hopes for this pack as it has many mods I like, but it's literally unplayable

Im having the same issues with a top of the line GPU and CPU, so its very much so the pack.

Same issues. The devs need to address this or at least provide some form of input. Support for spellbound seems mostly nonexistent now

Mipmaps seem to be causing issues, but turning off mipmaps seem to make the pack run smoother. Also tinker with your graphics settings.