On par with Java but without maven startup time.

Admittedly I’m not citing actual numbers (but then again neither is anyone else here), but subjectively based on past experience, I highly doubt that. The OCaml compile is super parallelizable, with no forward references i.e. potential dependency cycles like in Java. My feeling is it blows Java out of the water.

You don't need Maven to compile Java code, additionally when using Eclipse incremental compiler, files are compiled on save.