Fast eater

Ashley
My 2.5wk old eats very quickly almost frantically. I take her off during my let down because she will start sputtering and I do lots of burp breaks. She seems to be getting gassy and uncomfortable in the late afternoon dispite that.  Any other tips to get her to slow down? Could it be my flow that is too fast? 
She has had no  problems with weight gain (she was up to birthweight 4 days after being born)