I discovered that pressing Ctrl+Tab and holding, then moving the mouse to the required option, followed by releasing it, might be how the developers intended to use the Pie menu quick selection feature. Please correct me if I am wrong.
Not sure Sakthi, I think what you are describing is an alternate way of selecting the option.
The super fast section happens with the gesture of the mouse rather than the clicking or releasing of the button.
It would be nice to be able to increase that time by a fraction of a second but for now you need to have the reflexes of a jungle cat.