If you

are running on a computer with the minimum system requirements,
here are some things you can do to try to increase your system's
performance:

1. Disable the sound effects and/or music in the Options screen which can
be found in the Main Interface, on the scoreboard icon.
2. Make sure you have a permanent swap file of at least 5 MB set up
in Windows.
3. Do a full hard disk installation, if you have the space available
on your hard disk.