Tried out Sublime Text 2 Win 64 Bit (2139)
While using it i felt the system behaved a little more clogy than usual. After checking the task manager i saw that ST 2 had over 2 million page faults. (http://en.wikipedia.org/wiki/Page_fault)
Finding that quite strange i restarted ST2 and the number of page faults was quite reasonable. The instant i started scrolling a simple plain text file (also just 1 tab), the number skyrocketed. I can’t think of any reason this should be normal, the only program that i got running that get close (or above) to that number is my anti-virus program and Steam.
Also, it does not only apply to scrolling. Just letting the program idle in the foreground has the same effect, but not so profound.
tl;dr
possible page fault leak in win 64 bit version of Sublime Text 2.
edit:
also happens with the 32-bit version (2139)