Ebay universal power windows
 

Brand NEW 4 Window Automatic Power Roll UP Closer Conversion KIT Universal | eBay

just installed these a week ago and the windows seem rather.. sluggish. sometimes stops completely lol. anyone else had this issue before? (directly connected to battery at the moment...)

*edit*

i just realized why the heo i post it in auto chat.. instead of a tech

Grease up the regulator if it was difficult to roll originally even before putting on this kit...
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Also make sure you put a bit of proper grease on the glide tracks.

Got to remember aftermarket window actuators are going to be slower than actual OEM ones.

This motor just spins the manual window handle. I rarely recommend anyone buy aftermarket power windows. They just aren't all that reliable and tend to slip and/or die quickly. The SPAL brand is one of the better ones out there, but even those aren't that great.

I would try greasing the tracks and maybe even WD40 inside the crank.

Unless your car is newish, I honestly think your best option is to dump the Ebay branded ones and pick up a used set from Pickapart. They're dirt cheap there.