A closed source project (as it is as of right now) can ONLY focus on the "slower Python part", as it is the ONLY way of extending Sublime Text. I really can't s

A closed source project (as it is as of right now) can ONLY focus on the "slower Python part", as it is the ONLY way of extending Sublime Text. I really can't see how open sourcing ST would make it slower. If I wanted to extend it in a way that is not supported in the Python API, I simply can't.