Q Light Controller+

I was referring in virtual console, if I create a circle efx for a mobile head, how do I increase the speed of the circle or any other figure?

By reading the documentation:
http://www.qlcplus.org/docs/html_en_EN/efxeditor.html

Duration: The duration of one full round using the selected pattern

Unless you're asking "How do I increase the speed of a running EFX from the virtual console ?"
Then the answer is Speed Dial:
http://www.qlcplus.org/docs/html_en_EN/vcspeeddial.html