A method and system for boosting a clock frequency for a processor in a mobile device based on user interface (UI) demand are described. In response to a user interaction through a UI in the mobile device, a vertical synchronization pulse request is made by an application and an indication of such request can be provided to a governor. The governor can adjust a clock frequency of a processor in the mobile device based on the generated indication. The processor can be a central processing unit or a graphics processing unit. The clock frequency can be boosted to a higher frequency to increase the processing capabilities of the mobile device to handle the computational requirements of the user interaction. Some time after boosting the clock frequency of the processor, the governor can return to normal operations in which the clock frequency scaling is typically based on a measured system load.