Why is panorama unusably slow?
I am using FireFox 4.0.1 on the Fedora 15 OS Gnome Shell. I can practically not use Panorama at all because it is extremely slow. It takes at least 10 seconds to view my tab groups, at least 5 seconds to create a tab group, and at least 7 seconds to load a tab from the Panorama view. I can switch between groups using CTR+` just fine.