Uhm... Everything looks alright to me. You're a wood squire, as you are supposed to be with that amount of points. You're not that far from getting an iron rank, though. :P
school computers are usually slow because they are used on one function to teach not use to go A.G!! hahahah i knew that because our school computers sucks like hell. mine is 10 times faster.
It comes up properly for me. It isn't your computer that is the problem, it is the fact that you are using Internet Explorer. It is the only browser, regardless of computer, that has ever done that for me.
I wouldn't worry about it though. It is just the browser.