Created attachment 464317 [details] Screencast contrasting scrolling performance while website is still loading between Epiphany and Firefox Steps to reproduce: 1. Open reddit.com in any version of Gnome Web (this happens on other sites) 2. Do not wait for the site to load. Immediately start scrolling 3. Observe that the scrolling performance is very poor, buttons are hardly responsive until the site finishes loading The attached screencast contrasts this with FireFox, in which the website is fluid and responsive while loading other parts of the website.