+1
It depends on what's running slowly for you.
Right now the AJAX-based components, like the Quick Reply adding your post without reloading the page, or editing your posts inline, isn't working. However, in both these examples the script is designed to try it for awhile, then give up and do it the low-tech way (IE: loading a new page). That means the little spinning progress indicator image will go for maybe 7 or 8 seconds before doing it the old way. Of course, on the surface it just looks like the site is taking forever to respond. In reality, it's just trying one thing, then switching to another.
It might also just be running a little slower in general, but I thought I should point out that any delay relating to inline editing, quick replies, or any other action which lets you do something without reloading the page, isn't really related to server speed at the moment.