As a quickie fix, my mechanic told me to spray silicone spray in the rubber track around the window. I lowered the windows, sprayed the rubber groove where the window travels, and now my windows are moving at twice the speed. I didn't have to to take the doors apart.
I also put some on the rubber piece at the bottom of the window that acts as a squeegee when the window goes down. Had to clean the window a couple of times afterwards, but the drag on the window has been reduced.