I have a Gateway Solo 9550 w/ a Synaptics, and I loved that.
The Alps in my I9200 took some adjusting to get it to behave just like the synaptics.
Here's what I did;
Control Panel/Mouse Properties/
tab-"Touch Pad" / button-"Touch Senitivity"...set it to High.
tab-"Hardware" / button-"Properties" / tab-"Advanced Settings"...scroll "Sample Rate" to value "200". Click "?" and click "Sample Rate" scroll window for an explaination of what it does.
If your mouse is behaving in a choppy manor, on that same page, chan ge the "Input Buffer Length" value to "200 Packets".
If you're still have problems with iradic behavoir, uncheck the box "Fast Initialization".
Computer needs a reboot for changes to take effect.
I find no difference in my pads now. In fact, I've even changed my 9200 screen resolution to match my old Gateway 1024x768 for a true comparison of the mouse pad behavoir. It's covering the same # of pixels at the same speed, but with 1920x1200, it physically moves across the screen at at almost half the speed of the old laptop.
I find the sensitivity to be the same.
FWIW, I have mine set as fast and sensitive as possible.