I was about to respond with this. My baby did the same, around this time, we’ve gone up a teat size and it’s better. But I find he rushes it when he’s at the point of screaming and crying for a feed, so when he’s in that state I tend to stick to his usual teat to begin with and then when he stops for a break I change to the one up from it. Sounds a faff but it works for him…basically like a transition to the next size up!
I use mam bottles and teat no3 scared me cause it came out so fast, he was dribbling it all out the sides