Power window only moving a bit

On my 95 Cobra the driver side power window moves down about 1/4 inch each time I hit the down button. To get the window all the way down i have to keep tapping the button. It goes up fine though with no hesitation. I don't hear the motor continually trying to move it either after it moves the 1/4 inch, it just moves, stops, moves, stops

I used to be able to make it work by just hitting the button while i was closing the door and it would work fine, but now that doesn't even work. I'm guessing the motor is crapping out but figured I'd ask here before I start buying parts. Thanks

Flipped the switches still didn't work, cleaned the contacts with electrical connector cleaner also before switching them. So it's either the motor or the regulator binding up