Follow this little and cool tip to increase the priority of active processes, this will result in prioritization of processes using the CPU which will speed up specific programs you want.
Follow these steps:
1. Press CTRL-SHIFT-ESC
2. It will open Windows Task Manager showing current running processes.
3. Now right click on any one of the active processes (whichever you want to speed up), the last option will be of setting the priority. It will have the following options: