I use Macbook Pro 16’ (2019). When I try to watch something from Youtube, the video freezes but the audio continues or vice versa. This happens few times a day. The more time I spend on Youtube, more frequently I face this problem. The laptop also heats up and “kernel task” shows up in Activity Monitor and gradually uses more and more cpu. This happened regardless of the Mac Os I used( Catalina and Big Sur) The laptop is 9 months old and this issue started 1 or 2 months ago. What could be the problem?