So, it looks like Sublime is still idling at around 6%. This is fine, but I'm guessing it is because the folder which I have added is a live web server directory with active cache folders, so Sublime is constantly seeing filesystem updates. I realize how silly it is to be working on a live site, but go yell at my employer
I think it would be handy if there was a setting that could instruct Sublime to only process changes to directories in which I have open files or something along those lines.
Regardless, this is fine and I'm quite happy!