JetBrains IDEA: how to disable diff highlighting in editor?

I checked my project into GIT support and after that there are marks in editor showing me places I changed in file relative to the last commit (I think). It really slows editor. How to turn this off? I can't find the spec开发者_运维百科ific option in settings.

There is no way to disable it except disabling the version control completely in Settings | Version Control.

If it slows down the editor (it shouldn't), please file a bug with a CPU snapshot.