Hey, if it works for you, that's great. My point is really just that there are still pretty common situations where CPU performance matters and so you really need to measure on the types of devices your users actually use. If you look at that and say it's fine, you don't need to change anything but I suspect a lot of developers would not be happy with the performance of their sites on, say, 3G or public library WiFi on a phone which was $200 when it came out multiple years ago. A fair amount of that isn't CPU-related but network transfer, but real testing will catch both of those.