It’s the performance, stupid, not the pictures of the screen. Blue screens were unacceptable. Feature overload was and is unacceptable. Lack of administration utilities is unacceptable. Lack of transparency in the Bizantine registry design is unacceptable. System freezes, when, as I mentioned, a browser waits for a response from a website are unacceptable in multi-processor, multi-thread systmes. Etc, etc.
How can you blame the OS or the browser for slow server response?
I use Win 7 with IE 11 and FR is now one of the fastest loading/connecting sites I visit. Drudge on the other hand is getting increasingly slower.
Point is, it depends on the server and it's ability to handle traffic, not necessarily the machine you are using to connect.
PS...I have the I7 quad core.