I answered your email already so the compilation this is fixed.
However I'd be pretty much certain that the speed of JavaScript is not your problem - and I seriously doubt compilation will help you in this case.
Could you post up your code, and the messages it posts up?
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I answered your email already so the compilation this is fixed.
However I'd be pretty much certain that the speed of JavaScript is not your problem - and I seriously doubt compilation will help you in this case.
Could you post up your code, and the messages it posts up?