[synaptics] Require minimal finger move for moving cursor

[kaycee gb]

Hi,

I have a "crappy" touchpad on my dell laptop that drives me crazy. I am
unable to fix the sensitivity/jump problems when clicking. I tried different
things. Sometimes it seems to help/make the jumps less present but not really
for a long time. 

Thinking about that, I wonder how it would be possible to require a minimal
finger motion before the cursor can move ? Is it doable ? Coding needed ? 

Thanks in advance,
K.