Controling Bullet Engine Gravity?

Yes i was ju7st wodering if theres a way to increase the effects of gravity with the Bullet Engine. Ive used Logic bricks to make my character jump, but the decent is rather slow. Im wondering if theres a way to speed up the fall. Please and thanks.

if you want to have realistic physics and gravity, you should resize the object to a normal scale in blender units as meters, and reduce the damping

Can you explain to me the signifigance of damping please?

Damping simulates air drag or “friction”, so free falling body won;t be accelerating constantly, but after some time will fall with terminate velocity

I see that makes sense, and i did not realize that scaling had such an effect on physics, i shall start immidiately. thanks guys