A fun read, but there's a lot of claims and opinions without additional information or citation. Off the bat there's an arbitrary grades list. Why is Opera a B

A fun read, but there's a lot of claims and opinions without additional information or citation. Off the bat there's an arbitrary grades list. Why is Opera a B and desktop Chrome a B-? Author claims mobile Chrome required a bunch of optimizations. I believe him, but would love to read more on what type of work had to be done. > The end result of this is that we've been brainwashed into believing Chrome is the best browser, when the reality is that across all metrics, Chrome is 3x to 300x slower than Safari. In what way? The Javascript engine? Repainting?