You say you don't mind 300ms in exchange for control over what your browser does. Wearing my technology and privacy conscious security USER hat, I agree comple

You say you don't mind 300ms in exchange for control over what your browser does. Wearing my technology and privacy conscious security USER hat, I agree completely. As a webmaster for a site where retention and "stickiness" are critical, I can say without hesitation that those 300ms are potentially HUGE. For the vast majority of the users coming into a site who are unaware of these things, faster page load times make a huge difference in retention and repeat visits. People unconsciously like pages that appear faster. Ask them WHY they like one site over the other, they probably won't say it's the speed, but the stats say otherwise.