Less CPU and smooth scrolling go hand in hand, don't they? How are those different issues? Try turning off the "burnin" effect in the XML file. That uses a TON of CPU. If you're still not happy with scroll speed, then it won't get any better, because the player gets CPU when it wants it. Without the burnin effect, CPU usage for me is typically 5% or less, even with visuals in the background.

As for starting automatically, I believe that belongs in the Hijack wish list, not mine.