xnormal cavity bake is extremely slow

I'm trying to bake a cavity map out of xnormal and it is ridiculously slow, like 4 hour bake slow....

Not sure what else to add, I'm baking a character using a lowpoly with an external cage file using the default cavity map settings. Normals baked out quickly without issue.

Is this typical? Any ideas on what could be causing this?

Edit: ugh forgot about the official thread sorry. Can delete this thread if necessary I replied there instead