[Webkit-unassigned] [Bug 250060] New: [GTK] Scrolling performance is poor, site unresponsive while loading other parts of website

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=250060

            Bug ID: 250060
           Summary: [GTK] Scrolling performance is poor, site unresponsive
                    while loading other parts of website
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: kdwkleung at protonmail.com
                CC: bugs-noreply at webkitgtk.org

Created attachment 464317

  --> https://bugs.webkit.org/attachment.cgi?id=464317&action=review

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.

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