Oh yeah, there's no question that she had a unique tone. Whatever the cause may have been, Cristina dropped her voice to the point where she sounded more like the 30 year old lady that she is rather than the 14 year old girl that she really is. In the second part of the episode, though, she sounded a lot more like Marinette, so I'm going to put that up to some COVID-19 dubbing madness.