Thank you for your feedback. I was curious if it would slow down on other people's computers so that's good to know.
If your computer is too powerful the rocks / dust got attracted to the ship way too fast and you completed the mission without doing anything. So I modified it to make it "harder".
What type of computer do you have?
Either way, I'll have to come up with a solution that fits both super powerful pcs and not so powerful ones.
Did you get past level/mission 1?