It's not the computer that's the problem, it's your internet connection and/or the web browser you're using.
If you're using an old web browser, say a year or two old, that's ANCIENT in technology years! Older browsers can't handle new websites that are based on new web languages that didn't even exist when the older browsers were new. Either download the very latest version of whatever browser you use, or download the latest version of a new browser. Personally I use Firefox, but just about any browser out there will work fine, but you need the latest version available!