Default Mediaserver draining

Hello, on my Onda v971, everytime I watch a video on Youtube, it increase dramatically the usage of the Mediaserver which in consequent drains the battery in a tremendous fashion. I tried to use the app called Mediaserver killer to correct the issue. But although that it works I still want to know that if there is way that I could reduce the usage of the Mediaserver WHILE watching videos on Youtube. Thanks.