Many words have been said about the importance of performance when working with javascript files. Here I want to summarize what developers can do to increase the performance related to javascript. I found many tips on blogs. Here comes my aggregated list of actions one can do to speed up sharepoint (and not only) sites with focus on javascript: 1. Load only sharepoint stuff you need Use prefetch option to only load sharepoint javascript files that needed.

There is a very good wiki page which describes how to set up the environment. If you think something is missing there, just leave a comment here. Much of that was inspired by a useful tutorial from doityourselfandroid.com