My hp note book 15 pc has first started of these couple of days stuck with a cpu speed of 0.5 GHz while its maximum speed is 2.16GHz. I have tried between all the power options and even on high performance mode the speed is still between 0.47-0.5 GHz. There is a noticeable audio breaking while playing videos and programs lag tremendously while running.
So what might be the problem, my hp never had this problem till this couple of days.
In the task manager under performance tab I have seen that the visualization feature is disabled if it is of any relevance.