Low level language for ML performance

Hello, I have recently been tasked at work with working on some ML solutions for anomaly detection, recommendation systems. Most of the work up to this point has been rough prototyping using Python as the go-to language just becomes it seems to rule over this ecosystem and seems like a logical choice. It sounds like the performance of ML is actually quite quick as libraries are written in C/C++ and just use Python as the scripting language interface. So really is there any way to use a different language like Java or C++ to improve performance of a potential ML API?