What causes YouTube videos to load so slowly?

There is no true way to make YouTube faster. It depends upon the internet connection speed that you pay for. This is also the same with me.- The YouTube app that is on the iPod when you first get, it does not buffer videos for me very well, however if i go on YouTube on safari the videos buffer a lot faster and i am able to watch any video on YouTube on my ipod now! Give it a go and see if it is better. Good Luck! and i have no clue why this is though xD