Maybe its just me but it kind of feels like getting perfects has more of a tendency to slow the pace down if your a little late on it but not to speed it up if your a little early
It's the second room, the one with the three ascending platforms. The room is higher than it normally looks. usually you cant reach high enough to get to the third section but If you go to where you get the second bomb and take it. you can backtrack and use the two bombs to get higher than you normally can.
