Viewing post in Make Visual Novels! RenPy Shader Pack comments
Without looking at the script and assets in their entirety it's hard to say what's preventing regicide from working. You could try making a copy of the transform and adjusting the settings, though the defaults should be enough.
The frame rate issue, as you suggested is an engine quirk. That's Ren'Py's default behavior you're running into. If you add this to any transform you're actively using, Ren'Py will render at full FPS as long as that transform is in use. It's worth noting that the shaders were written with this in mind and most of the included shaders do not have any frame limiting in them. This isn't a problem for most of them, but any of the shaders that include noise effects might be excessively animated as a result, depending on the resultant frame rate.
pause 0 repeat
Try slapping this either in a block under that, or in the Regicide transform definition.
mesh True
so it would look like this:
show eileen happy with Regicide: mesh True
If that fixes it, I'll push out an update to make it part of the default Regicide setup. I thought I had already done that, but I might've missed it.