What zolotiyeruki said. When a page falls to load fully within a few seconds, the browser may show you the raw page text without its accompanying styling.
If the problem goes away when you wait *without* refreshing, your laptop or network connection is very slow. Try a faster connection or get someone to stop all unnecessary programs running on the laptop and see if it runs any better.
If the problem does not go away without refreshing, then either your internet connection is terrible, or (more likely) the browser is infected with malware and/or a broken plugin. Recruit someone to clean it up for you.
You didn't mention which browser you're using. If it's not Google Chrome, you should probably switch to Google Chrome.