Greetings:
I did some research and one website acknowledges that Windows provides superior buffering of videos compared to that of Apple computers. Since I own both type computers, I have experienced this. Even newer and, might I add, very expensive Apple computers buffer videos poorly, so I have read. I've all but given up on youtube. I believe it has something to do with Adobe software.
If you have anything to add, I'd be grateful!
CoCo