I bet you'll be having problem with touchpad performance on macbook running linux system, because i've been through that.
It's kinda annoying when the touchpad does not perform as it does on os x mountain lion.
The touchpad sensitivity is gone bad on linux system. Sometimes it clicks wherever i don't want to click, it selects area i don't want to as well. I've been through those trouble times.
I've googled around the globe, tried many suggestions like synclient....etc. but none of those are working.
Finally i found an efficient solution which is a tool called 'synaptiks', just go to software center and install it. And configure these following properties with your own preference, example :
Minimum speed : 0.49
Maximum speed : 8.10
Acceleration factor : 0.069
and check the option of 'For All movements, not only dragging'.
After that you'll be thankful to iPPLE.