The HR site does go through periods of very slow loading....you can watch the status bar as it attempts to load all the advertisement crap...and some days it's a PITA trying to respond to posts, etc.
Also, some days it just hangs and hangs half-way through the page load.
I'm sure some of that might be caused by where you are located and how many routers the load has to go through....but on the worst days for HR page loads, all other internet sites load fine and fast, so it is just HR that has issues at times.