I use mam and don’t have that problem but my friend did and switched to Dr Brown x
Try and lay them down on their side like they're breastfeeding and make sure the bottle is fully on their mouth when they're drinking. - advice was from a lactation specialist!
I use mam bottles too!
We used the mam bottles but swapped to NUK at 9 weeks and our little boy is winding so much better x
We use the tommee tippee anti colic bottles and they’ve helped so much xx