I just installed new weather stripping and my windows are slow going up.

This is a common problem, and is due to the fact that aftermarket manufacturers do not make their products to the exact same thickness as the original. What we suggest is that you spray the weather stripping with silicone spray and run the window up and down a few times. If that does not work try sanding down the weather stripping using a 1200 or 1500 grit paper.