No explanation on what you should do with the QTE is prob. gonna hurt you. But it looks and reacts quite well to the input, and dont look like it have erractict random movements.
Otherwise it is a solid good game, keeps the player hooked with wanting to optimize their ships and progress furthers. You are golden if the next theme is asteroids.
Observations:
Having the "powerups" go to the top is confusing, thought i could pick them up a couple of times, would make a sidebar they could go to.
First run, the first asteroid i shoot screen, and the minerals came at me - thought it was enemies ^^, would make them fly to the top where the mineral icons are.