I watched the demonstration videos on the landing page, and the effect wasn't as bad as I often see on some youtube videos, but I think that's because the subject was sitting at a desk, rather than standing, moving around much more. Anecdata - heavily jump-cut edits on youtube instantly inspire me to find an alternative source of the same information, as the breathless, rapid-fire, jerky-video, sensation is irksome.…
A more complex algorithm might watch movement and tune the amount of speed up so the visual doesn't get jumpy.