It seems that getRecipe currently uses a lot of tick time as it is called every crafting operation.
Would it be possible to cache the result of this for a decent speedup, as its unlikely the programs will be changed often?

Closing since focusing on new version (full rewrite)

I have noticed this issue as well. We have a single user on our server who setup one SFM setup to make food, and when its active, the server grinds to a halt. When I analyzed it, it was at 615kms. Stopping the SFM from running return the server to normal.