I have a MacBook Pro with Retina Screen running OS X 10.8.2, and just installed ST2 build 2220 because I was having some serious performance issues with scrolling and selecting text. While this build does seem to be smoother, it is now constantly eating about 15% of my CPU while the app is in focus and a window is open, which is JUST enough to start my fans up. Screenshot of Activity Monitor:
If I switch apps or close all ST2 windows, it stops. The issue only occurs while a ST2 editor window is open and active. Doesn't seem to matter what file format / syntax.
I have zero packages installed, and I uninstalled Package Control too.
Just letting you know! Apologies if this is not the correct place or format to submit a bug report.