I've seen in some promotional materials claim that she blew out her eardrums running around at hypersonic speeds. The movie didn't seem to touch on it all.I'm not sure how well a speedster could actually hear. They would get a roar of wind and everything would go nuts from the doppler effect. If they run faster than the speed of sound would they be able to hear anything of value?
But still, is there an in universe reason why they made a broken eternal? Would the celestials have made one that was blind, lacking limbs, or susceptible to cancer? Not seen the film.