Speeding Up XP on Older Machines
Of course you know XP has some pretty attractive user interface features. A few of these being scrolling menus, shadowed cursors, and displaying folder contents while repositioning. What you may not know is that these require processor power and utilize some of your system or graphic memory.
On older machines you may notice an increase in your system performance by disabling some of these features. You can easily enable or disable features by going to the following location:
Control Panel > System > Advanced > Performance
Clicking Adjust For Best Performance will disable everything, including the default XP window theme.
Find the setting which works best for you and you will probably notice a
slight increase in performance for your everyday use.