I believe you are just experiencing some flaws in how the movie was edited/made. I've noticed it too in some various parts during some songs. I don't think it's your system if all dialog isn't consistently out of sync.

It kind of bugged me too, but overall I think it is a fantastic movie with great, dynamic audio that allows your Axioms to shine.

-Dave

M80s VP150 QS8s EP500s
ravenmanor.com/cinema/