Mustafa Qamar-ud-Din shared an answer on Quora with you
Do sk-learn algorithms run at C-like speed (similar to numpy vector computations)? by Mustafa Qamar-ud-Din https://www.quora.com/Do-sk-learn-algorithms-run-at-C-like-speed-similar-to-numpy-vector-computations/answer/Mustafa-Qamar-ud-Din?srid=GwvE&share=1ffaa6b7