It's a nice visualization, but cpu usage shoots through the roof ! Deleting the animated arrows between the countries helps a bit, but then it still uses around 50% cpu (and that's on a fast desktop computer. Can't imagine my laptop trying to display this page). Using Ubuntu + firefox (it's a little better with chromium).

Is it a problem with this page ? With my setup ? Or is it just impossible to do something of this quality on the web without monster cpus ?