Since the format of our e-mails has changed, my e-mail functions have gotten very, very slow. When I log in, it takes a long time for everything to be displayed so that I can start typing. When I want to move something to a folder, it takes a long time for it to process my request. What happened?
Try clearing out your browser's cache/browsing history. When you have done that, close out the browser and re-start it in a fresh session. If that doesn't do it, then try using a different browser.