the speed of ship did not change, it is just the effect of the speed glitch that was taken away...
the speed glitch allowed to go more quickly by using air brakes and an action on the pad of direction that the right online normal speed but it also intervened each time you used air brakes in turn (airbrake+direction pad) or by making a preparation of br by orientating to the right or has left ship associate in a ss...
That's why, you can find ships a little heavier today, there is no more surcroit of speed coming from speed glitch effect in exit of turn or on certain preparation of br but THE SPEED OF SHIP DID NOT CHANGE ...
Whatever, if your time is not a top 10 ... u should be able to beat your time even without the "speed glitch effect"