I had the same problem too. What you can do until you get used to the MX700 (my personal fav) is go into your mouse properties and go into your "pointer options" and turn the speed down. If you don't have this option, then you gotta do a little trick.
Install the driver and stuff for a Microsoft Optical Mouse, but keep your MX700 plugged in. (May require unplugging when installing drivers) Once that is done, you should have the speed options, tweak it to your liking and once you get used to you can turn it up.
I found this out by doing it. If you install the MX700 drivers, then you can't bind your wheel mouse (up and down) in games.