How quick is your computer? I had the same thing on my last pc which ran really slow. Now I have a faster pc with a better network connection, and I haven't got that problem anymore.
It could be that you need to change your browser. Do you use Google Chrome or Mozilla FireFox? I recommend using Google Chrome. Both Chrome and FireFox are very quick internet browsers, but FireFox uses a lot of cookies, which slow down your system.
I'd say, install Google Chrome, if you haven't done that already. If not... I think it's your computer then.