I find the comments here far more useful, and they aren't one-line commands with no explanation of the parts. Thanks for the submission, for the discussion's sake, but I'm not going back to that blog any time soon.
Which browser and OS are you using? Scrolling isn't slow in webkit for myself, but I'd be happy to dig in and make it smoother if it's an issue.
Looking at the profiler in Chrome, I'm not seeing any unnecessary events while scrolling between things - maybe it's a transparency somewhere instead? Removing a handful I could find did speed things up, though I probably missed a few. Browsers are still lame at those, unfortunately :/