Very slow Acceleration and loud vibrating noises when RPM's are high on my 06

I am fairly new with the galant have had it for about 3 months now, and ive noticed that when ever i peel out, or accelerate to speed up, it takes forever to get me up to a decent speed. Ill sit there almost pedal to the medal, and when it does begin to take off, the RPM's get very high and i hear a fairly loud vibrating noise, im not sure if its the pistons or what. But is there anyway i can stop the vibrating, and/or somehow make it accelerate faster. Thanks

btw its a 2006 2.4 L Galant.