I have noticed this with every ford, but my car is really getting bad now. When ever i hit the button for a window my lights dim, the affect is light to dark, its a pretty big difference, and if i hit two switches at the same time, the left one is a tiny big faster, but they are both cut down in speed. (now imagine all 4 windows, with lights and amp on with the subs hitting, I timed it, 56 seconds to roll downt he windows, ohh yes my heater was on two, which also slowed way down, and started letting off a burning smell. Is there any good way to make it so that my car has more power, and the windows won't lose power and go down faster?
