Hello,

I am not the OP, but I have the exact same issue on my Macbook and iMac both.

I have completely uninstalled and reinstalled the game several times, I have played around with higher graphics settings vs lower graphic settings.

And the problem does occur in every area I visit. It's definitely not exclusive to any particular area - it happens in housing, dungeons, raids, and generally populated areas. It makes running dungeons and raids dreadful, actually, and very difficult to do.