I am not sure of that. I don't have enough evidence to deny nor to accept it. I remember once another classmate had a presentation and she spoke faster than no

I am not sure of that. I don't have enough evidence to deny nor to accept it. I remember once another classmate had a presentation and she spoke faster than normal and got criticized for it. However I did not think she was speaking fast until she was criticized. It seemed completely acceptable speed to me and I could very easily follow her line of thought. This is the only example I remember and it's probably insufficient to accept your conjecture.