Xubuntu uses less system resources and is suited to older computers, netbooks, laptops, high efficency workstations and systems with limited resources.
There is no option to turn off the touchpad. It can be turned off temporarily by going to a terminal, type sudo rmmod psmouse. (Must be repeated with every reboot. To turn on (reverse) type sudo modprobe psmouse. To reset timezone sudo dpkg-reconfigure tzdata.