Multi-touch trackpad slow to release?

Just got a new Macbook Pro and my love/hate with Apple continues. One thing that's driving me crazy is the multi-touch trackpad. When I double tap to drag something such as a window, a volume slider, etc., it takes an extra second to release it after I'm done dragging.

For example: when I double tap the trackpad to drag a window somewhere, quickly lift my finger off the trackpad and then put my finger back on the trackpad to move the cursor, the window that I was moving is still "active" and thus moves with the cursor. This is especially annoying when moving volume sliders.

I have never used a trackpad on any other laptop that makes you wait a second to release the item being dragged. I've searched all over the trackpad options but there doesn't seem to be a way to adjust this. Is this normal behavior? Is there a way to adjust this behavior somewhere?