[TaxRelief]

System Preferences==>Keyboard and Mouse===>Trackpad

Perhaps they should have named the tab “mouse”, but it is not really a mouse, it’s a trackpad.

Sorry someone scammed you into buying a third party software.

[Wayne07]

I still don't see an easy solution other than what has been recommended to me in the past, which is not free.

http://ragingmenace.com/software/sidetrack/index.html

[Cyber Liberty]

There is no setting to control “Acceleration”, just “Speed”.