How To Configure Synaptics TouchPad Settings
Here is the section which speaks specifically to adjusting the touchpad sensitivity.
Open the TouchPad control panel
The TouchPad control panel is where all configuration options for the TouchPad are located. To open the control panel:
Click Start , enter mouse in the search field, and then select the Mouse control panel program from the search results.
On the Device Settings tab of the Mouse Properties panel, select the Synaptic TouchPad device and click the Settings button.
You can adjust the TouchPad settings for scrolling, buttons, touch sensitivity, edge sensitivity, and gesture actions to suit your personal preferences.
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