BCN gave you some good advice, a couple things to add:
The Fromm 4 Star line is all life stages, so you don’t have to worry about the whitefish and potato (other than the fact that it is about the lowest protein food Fromm offers)
Try this out for slowing down the eating:
I can’t say enough good things about Kyjen’s slow bowls. They also have “Mini” ones that are smaller and cheaper for dogs like a corgi that don’t need a ton of food.
Try alternating around in the 4 star line and see if another food helps. Or, try out some limited ingredient diets and start checking off what works and what doesn’t. BCN is correct in that a lot of Fromm has similar ingredients, even among the different blends. If I was going to pick up a bag to start off with, I would grab the Game Bird or Surf and Turf. Good luck
