The forum is now dynamicly processed, and so everytime we load a page, it will have to be regenerated. Previously, the pages are not generated on the fly but rather each time something is changed, so the web server was simply serving static pages that is updated often.

So the forum will never be quite as fast as the old one, but then there's a lot of new features. (is there a way to turn off the topic review? its making the reply pages very slow to load...)