I'm with you op.
I don't think your saying you don't like these other mums just don't need to conversation to totally revolve around the things you mentioned.
It does get better but I found it's when the kids are a little older.
It can be hard to find other topics when babies are little because life tends to revolve around them.
I find my DH tends to go on and on to other people about our baby and don't get me wrong it's sweet but I wanna talk about adult stuff not how many poos he's done that day!
Since DD is in school I find it's much better.