Maybe thumbnails are rendered each time they are displayed. When you scroll up, each new line of thumbnails causes the delay. If you scroll down until the line is hidden and scroll up again, it delays again. This is true even now with the thumbnail rendering defunct.
I agree that this has been around for ages. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1260980 Title: activity and bookmarks functionality is too slow To manage notifications about this bug go to: https://bugs.launchpad.net/webbrowser-app/+bug/1260980/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
