The numbers aren't that good but its been out for less than a week. New music tends to stay #1 for only a few days, then drop some, and remain consistently selling. That's what i predict for PI.
IKR
Also its not like Perfect Illusion sounds like Uptown Funk or Sorry
Its a complete 360 from those songs actually
If she was hopping on the "trend" then PI wouldve sounded like Uptown Funk or Sorry easily