Mouse Preferences for Login Screen

I have two mac's, both of which have multiple users on them, so the login screen is frequently used. The one thing that annoys me about it is the mouse prefs it uses are the default ones...and they SUCK. On my iMac, the mouse moves extremely slow, and on my Macbook, you can't click by tapping the trackpad, you have to click using the physical button. Is there any way to change those settings, or am I stuck with the defaults?

 

Anybody know? It's not a big deal, but it's a little annoying having to alter the way you are used to using the mouse.