Don't drive your car for a few days, you will start to notice the speed again.
Also, right before you gun it, let all your muscles loose, and do not clench them as you accelerate, and you will feel the acceleration.
Humidity and heat kill performance. I think its every 10 degrees Farenheit equates to a 1% loss in hp.
Last night it was 10 degrees Celcius and I was making 1.5 psi more than I usually am in hot weather
