I've been getting this warning for a while:
The following annotation processors are not incremental: kotlin-compiler-embeddable-1.5.30.jar (org.jetbrains.kotlin:kotlin-compiler-embeddable:1.5.30).
Make sure all annotation processors are incremental to improve your build speed.
I believe this is the reason for having slower build times. However I can't find anything related to this warning. Any ideas?