First look at your formation- it's one of bots favourites so it must be bad! I don't know any top class teams playing with such formation. They keep at least one or both defenders on DCB. CB run more forward and may not reach back. Two CM is another bad idea as it's overconcentration and they tend to disturb each other. Play one of them on AM positions. You play always with 2 strikers and never use flanks- so you are more predictable and it's easy to play against you: all my best defs to center and your offense is neutralised.
Swedish league is not very strong one at all- my second team won Talisker some seasons ago. I think i could build a medal team there with 10 seasons maybe as many teams are not good tactically. So don't wonder if some weaker team will regularly win against 1-2 stars better teams if he will do some things smarter like having right and needed special attributes.
Man City and PSG don't win all 38 matches having fatest budgets- they lose sometimes to second half table teams! That is life and sometimes they don't win even championship title!