Thanks for playing our game fellow record spinner :)
Regarding the slowing down, that's an interesting observation. We haven't had much time to balance out the slowing down and speeding up against the level difficulty, but for us and others who tested the game, the slowing sometimes seemed like to make the game harder, since the timer moved more slowly and the bullets would start to form nearly undodgeable patterns (due to some oversights in the code) while speeding up actually made the game easier. The numbers were tweaked at the last minute, so maybe that changed something?
Either way glad you enjoyed our game!