Thanks for reporting all this stuff, it helps me improve this game :) Bug fixes and improvements in this update!
Changes:
Flying Faker now has 40% chance to also get an firerate upgrade that increases main guns firerate as well when picking up the pink ball
Flying Faker firerate is now capped so it cant go below certain treshold
Progress percentage fixed to show correct
Vent glitching by changing positions very fast fixed
Keep the feedback and bug reports coming <3