Yeah, the camera movement is a little much. Planets will be slower and I want to make a camera director to be more proactive than purely reactive. Currently it tries to fit all planets into a box and then move to the middle and zoom to fit the box into the screen with a margin, so if a planet shoots off the screen it takes some time to get down to it and by that time it's already back on screen.
It's so fast because I want people who are just checking it out to be able to fly through rather than wait an hour and not have all of the planned content. I might change the upgrade to be smaller speed boost combined with a score multiplier to have the same doubling.