Firstly, do yourself a favour and don't kill your car.
Secondly, without any science to support me, I would imagine that if you practice using the Autostick and found the precise second to shift, your results may improve. No guarantees, though.
The Autostick was not designed to make the car perform any better but to provide a 'sportiness' feeling for the driver, and assist in slowing the car when approaching curves, red lights or stop signs. (eases wear and tear on the discs).
I do sometimes feel that once moving, and then a sudden shot of the gas pedal, will accelerate the car faster than playing with the shifter.
Anyhow, keep your car well and let us know if your times improve!
01 BLK Haunted RT