when i play the lowrider game it runs slow

You may need a faster computer to play the game. You can try a couple of things to see if they help at all:

1. Close out any programs you have open. Including programs that are running on the system tray. (bottom right corner)
2. When selecting your car in the game turn off reflections for both cars.
3. Use a different browser.
4. Update your video card drivers.