Personally i hate wireless. i had the same mouse as you, think i paid like 60 bucks for it and it sits in a box of junk with other computer parts from the stone age. have you ever tried to play a game with wireless? its horriable. they skip, get bad connections, and you constantly have to press the button on the bottom of the mouse then the button on the wireless tower to reconnect the signals, and the **** batterys make it pretty heavy.
As for the shiny thing, your right in the sense that the duller the surface the better the laser will pick it up. has to be dull and smooth for the best proformance.
Driver update i dont believe so all tho you can check microsoft and see. it could be to far away try moving it right next to your mouse for a short time and see if it gets alittle better.
For the pointer speed, wireless mice has really bad DPI compared to wire mice like Razors and higher End Logitech.