First, it may be because she is a little taller than you and needs more intensive training than you. Second, it may be that everyone's physique is different, and some people are not so easy to sweat ~
Third, it may be that she made mistakes in her movements during practice, which led to the failure of each movement to achieve its due effect. Some movements will go astray if there is a slight error. Generally, she will consult the coach first, let the coach guide her, standardize each movement posture with her hands, and let each movement fully play its role.