Im all for innovation, the start menu was basic, I just think the start page is just bigger start menu and now requires a lot more movement across my wide screen. I truly hope it continues to evolve but I must be honest and say it takes longer with the start page to get to something than it did with the start menu, and as developers, MS should feel bad about that.
You can't have a mouse yet be afraid or hesitant to move it around. That's what it was designed to do. Increasing your tracking will solve this problem.
And as screen resolutions get larger, this issue is only going to get worse, no matter what OS you use. If you're a user and have your mouse on the slowest possible setting, you're in for a world of hurt.