[Herobook Pro] Very laggy youtube video

Hi I’ve recently bought a used Herobook pro and the laptop is really slow like to the point where youtube on even 720p buffers and slows the laptop down. I know the intel N4000 is a low end CPU, but it shouldn’t be this slow. Can someone help me find a solution. I think it has something to do with an outdated BIOS.

Currently using:
Windows 10 Enterprise 20H2