Slow loading YouTube videos

Hi everybody,

I'm new to the board so I'm not sure if I'm posting in the correct thread. I have a MacBook Pro OS X 10.7.5 (I know, I need to update). Recently, I've been having issues loading videos on YouTube. The videos will load a little, play, and then buffer. This happens mostly on longer videos (20 mins and up). I researched and tried some fixes like changing the settings in Chrome but it really didn't work. Any other suggestions?

Thanks,
RYE-RYE