By disabling unneeded visual effects, you can speed up your windows xp pretty much.
How to change display effects:
- Go to control panel from the start menu
- Open performance and maintenance
- Choose adjust visual effects
- In the window that appears, uncheck any effects that you don't consider necessary, or just choose "Let Windows choose what's best for my computer"
- Hit OK and you're done!
More Cool Windows XP tips & tricks HERE