Having all the fragments spinning around the black hole, never going in and accumulating through runs for a massive game slowdown is for sure a design choice. Also, is the black hole ever supposed to grow past size 1? I'm at where the upgrades costs 1M+ and it has yet to grow, also the upgrade(s) for getting extra time on breaking asteroids either doesn't seem to work or they give way too little time, hard to tell with the game running so slow tho.