I just tried zipping around the forum and it's definitely faster.
Also seems to have fixed the only real issue I ever had with the forums (kept meaning to post about it) - viewing 'attached files' images in the gallery viewer. Before the first image would never load, I had to be patient and then go to another image before moving back to the first would then load it. Which meant for single images, I couldn't view. Just tested it and all worked fine, the first image loaded as it should and the others much more quickly than before.