In reply to mac2net.

CPP sounds idiotic. If someone wants his page to load fast, why does he needs to ask the browser to enforce it on him?

There is a reason why publishers do not want their users to have a second rate experience on mobile, either none google ads, or complex UI components, if they have wanted to degrade the mobile experience to make it faster, they could have done it easily. It is ridiculous that if my site serve a population of iphone 6 users in the US that I need to make a special version of it so it will load better on some cheap android in india.