max is not a fixed rate, it is the best possable rate you can get.
I get 7MB/s sync but normaly i see less than my 2mb fixed that i had before, but this is ok by me as i do tend to get the full 7Mb/s at nite (i.e. not peak times)
It all depends on your connection ratio at your exchange, and also the website/ftp etc that you are trying to connect to.