You don't need whole image. If you stop at DC passes (~12-15% of the file) you get exactly 1/8th resolution of the image, although scaled without gamma correcti

You don't need whole image. If you stop at DC passes (~12-15% of the file) you get exactly 1/8th resolution of the image, although scaled without gamma correction. With HTTP/2 you can micromanage delivery of JPEG scans to deliver placeholders quickly, and delay delivery of unnecessary levels of detail: https://blog.cloudflare.com/parallel-streaming-of-progressive-images/ https://blog.cloudflare.com/parallel-streaming-of-progressiv...