Hush mining with 1070s starts off strong then slows down?

Every session goes the same regardless of what pool or miner I use. It initializes, I get rapid accepted shares from each of my 6 GPUs then when it receives a new job it slows to like 20% of that initial speed. Is this what everyone else is experiencing too? http://img.pixady.com/2017/09/893928_hush.jpg