All you need to do it the major assault once a week and then one horrific vision and your Cape will be as high as it possibly can be.
Ap grind is basically non existent because 75 is so easy.
Rep is only needed for rank 3 not rank 2 any more so unless you plan on getting hall of fame who cares.
There arnt grinds for casual players unless you want there to be
If you are watching method and choosing to play like them and burning out then that’s your fault completely