You may want to experiment with the setting to get the right setting for you. Link below for download and some screen shots (not good ones), it will perform better with some changes in the setting.
The TwinkleGL screen saver sends a shower of twinkling stars across the screen in a variety of attractive patterns.
Configuration options are available that can be used to change the screen saver into a chaotic mass of colour, a trio of comets orbiting the middle of the screen, or bizarre string-like shapes that slowly rise to the top of your monitor. Hundreds of combinations are possible -- use the Settings page to create your own!
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http://www.adamdawes.com/windows/win_scr_twinklegl.html