Reshade and NWN

I found a 3-year-old thread or Ancarion and Savant talking about using SweetFX/Reshade on NWNEE, but I can’t get either to work properly with it. I’ve also found a couple other users having the same issues as I. SweetFX (apparently) has been deprecated, and just won’t fire up for me at all, while Reshade does hook to NWNEE but drops the framerate ridiculously, even without anything applied, making the game unplayable in any way. Does anyone know what’s going on or how to fix it?