4 ms·It zips up and down following the mouse as one would expect for me.by abraham 15y agoIt zips up and down following the mouse as one would expect for me.replax 15y agoWhat Browser are you on? I tried FF12. For me, once I clicked the thing, not matter what I do, it will unzip, even if pulled up all the way again.abraham 14y agoI was on Chrome and never tried with Fx.