Comment 99 for bug 217580

this is an updated version of the page. It does not contain any "position:fixed" element on it.
as you can see the scrolling is very fast.

http://stinkt.kicks-ass.org/1b6cc1af2e8437646c9b7422d78e6eb3/no_css_fix_pos.html

(original page with the position:fixed elements)
http://stinkt.kicks-ass.org/1b6cc1af2e8437646c9b7422d78e6eb3/slidecast%20-%20studio%20-%20vertical-view.html