Hey!

I'd like a config to disable the spectre dimension, if you wouldn't mind :)

Minecraft 1.12.2
RandomThings-MC1.12.2-4.1.4

Why can't you just remove the recipe for the Spectre Key? The dimension itself shouldn't have much of an Performance Impact.

I could, but the dimension would still be active and loaded. I've been unable to unload it thus far. It's a tiny performance impact, but everything counts in a large modpack.

That being said, if it'd be a hassle to implement I would understand.

I second this as a option to disable

I third this. Most mods have an option to disable.