Roman, people always rate scenes a 1. There are some jealous little kids out there who stick 2 circles on a box and call it a "car". It happens to me all the time, and many others.
Sorry, when I say simplify, I mean don't use so many objects. I haven't taken the time to really see how this thing works, but surely 48 cylinders is a bit much... Perhaps use less cylinders, and more air friction.
Therefore there will be less objects, less lag, etc.