Sure, I&#x27;d love browser improvements too, but at the end of the day, you can&#x27;t automatically optimize everything from the browser. The browser can&#x27;t magically fix a 1MB JS file in &lt;head&gt;, or serving 2000px wide images to iPhones.<p>&gt;I&#x27;d prefer to just improve the browsers instead of putting the burden on Web authors.<p>A cynical answer is that Google released this because web authors haven&#x27;t done a good enough job making fast pages.