Physical fitness is an element to being accepted into a Service Academy, but only one of many.
It is also a component of the WCS that they feel that they can train you on, once you get there.
The entire first year at all the academies, puts physical fitness on nearly equal footing to academics.
Sound mind, sound body.
To put forth the most competitive application, your goals for every standard should be the maximum listed.
You won't hit them all, but you should endeavor to do so.
On the other hand, if your GPA is 2.0 and you hit the National averages for the SAT/ACT (1060/20) then your chances of becoming academically qualified are effectively zero.