Faulty electric window on drivers side

If the window works fine with the engine running, but not so great with it off, I would check 2 things: 1)Check your battery, it could be getting weak. 2)Spray some dry silicone where the window slides, the rubber can get really,really hard and will almost stop a window, especially if the battery is weak. I used to spray silicone at each 30k, and the customer was always amazed at how well their windows worked.