The Cooler Master MasterMouse MM530 has amazing tracking performance, thanks to the best-in-class PixArt PMW3360 sensor. With a price of $50 the MM530 is also more affordable than most competitors and comes with fantastic software that has great RGB customization options.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips