Full screen vid without overloading g/card

Good day,

I’m have a video playing full screen in the background of a site, check out www.bruce-wilson.co.uk/propeller. Does anyone know of any good codecs/ways of getting the video so it won’t overload the average graphics card? or will I have to ditch the idea?

I have after effects if that’s the answer.

Cheers,

Bruce Wilson