Improving extremely vocal DD's (2.2 yo) pronounciation

[indiana7]

Hi, 2.2 dd has excellent vocab, grammar & constructs huge sentances however the more her vocab develops her pronounciation is becoming more slurred she is running words together. Her pronounciation has gotten worse in the past couple of weeks & I don't know if this regression is due to her younger sister getting more active, crawling etc?
She has had no ear infections lately that I am aware of, she doesn't watch any tv, we read loads of books with her & I am making an effort to slow down my own speech.
As I said up thread the pronounciation has deteriorated the past couple of weeks could it be a phase? Any tips in improving quality of speech in general would be appreciated.

I think it will come with time. I would class my chap as extremely vocal. He was easily doing 7 word sentences at 2(odd fact to know but we were seeing a paediatric consultant who counted!).
As he got more excited about words he would take less care and be less clear. He definitely went through another phase where only very close friends and family could understand him.
Occasionally I correct his pronounciation but only so other people can understand. If it's a story that is just for me and dad (like what happened on postman pat today) I leave him to it.
Does that make sense? He's 3.5 now and can have clear conversations with anyone who'll listen!

Sounds like a phase. The more words that come the more excited they get. Youay find a short period of stammering appears too when their brain and mouth are going at different speeds.
Only one of mine has needed speech therapy due to early hearing loss and I was told under no circumstances to correct poor pronunciation. Was told to model it instead by speaking properly myself and repeating back to them. Eg 'we are going to the hopspital' yes that's right ds we are going to the hospital sort of thing.
The last thing you want to do is draw attention to it and knock their confidence. Just model good speech and repeat back to them their sentence in a relevant way as above.

Thanks so much my little dd's like your son very long sentances & big words yesterday she announced "bears sleep during the winter it's called hibernating they wake up in springtime" her daddy is a wildlife buff! However it's v unclear & she keeps putting on a silly annoying babyish voice that drives me insane!!! I am leaving her to it though as I don't want to keep correcting her& make her self conscious about speaking. Is your sons speech quality much better now?

I think getting her to watch you say the word and to be able to see how your mouth forms the word will help. I know that asking DS to copy me helped him a lot right up to learning that awkward TH sound.