Do you think talking a lot affects the game?
I'm not sure if this affects anyone else, but if you've ever had an extremely talkative team that doesn't say anything useful, you end up losing? Useful as in "place a ward here, make an item, they're here, etc." I don't mean trash talking or being toxic to anyone, but more like encouragement.
Not that I hate encouragement, but throw away the encouragement and communicate normally. I don't mind the occasional "nice" or "gj," but really social and talkative players (from my experience), tend to lose.
I'll say a few words at the beginning where the action hasn't begun, but I feel having a teammate talk every minute actually lessens the chance of winning.
The other team will be whatever the hell they want to be.