导引程序 meaning in English

steering program
steering routine

To assure that the graphics does not take to much time from the calculation we have included an autopilot in the screensaver
为了保证显示图形对计算程序的时间占用减到最小，我们在屏保中放置了一个自动导引程序。
You can still play around with the settings but after the autopilot timer runs out it will come back on and reduce the graphics workload
您仍然可以尝试调节设置，但是当自动导引程序每隔一段时间自动执行后，设定将会被改变以减少显示图形的负担。