it's not just about speed, it's about quality as well. AMP has more restrictions than just that the site is fast: amp pages have to have all the image sizes de

it's not just about speed, it's about quality as well. AMP has more restrictions than just that the site is fast: amp pages have to have all the image sizes defined and the content loaded in the initial load - no fast page loads followed by spinners or lazy-loaded content, or page blocks that jump around as loads. It's a better user experience all around, not just a faster page.