I may have missed this, but are you 80 yet?

I haven't even set foot in the new content yet other than the DK zone.

Since the game has been out so long, pretty much anyone could make a DK...that means all the 6-16 year olds are going to be in there too.
It should get better once they get out of those zones.

I'm sure there will be more patches to come to flesh out the content we have now.