Mice like this give me literal Ebola.
They structurely shouldn't work and the hand must get real irritation.
I've been running off an Anker 4000DPI Gaming mouse for about a year and a half and that wasn't a crappy purchase, what you have looks awful.
So get a refund
haha... just a prank... or is it?
edit; probably why i'm crap at pvp but this is very much in the budget section