My Player career mode difficulty

I have a similar issue (and have had this problem with previous versions of the game, eg FIFA 21) ..

When playing career mode and locked to player, I find if I play on legendary the rest of my team fails at the basics so often we get beaten easily. But if I drop back 1 level, then I start beating teams by this score instead.

At the moment I have a career going as a RWB playing for Wigan. Last night I played a league match on Legendary difficulty against Bolton and lost 6:1. The next match was a cup match, so I dropped the difficulty to World Class and this time Wigan beat Bolton 7:2. Almost the exact opposite. Same teams, I was still just playing my player. Only change was the difficulty. As a result my player rating for the match went from 6.3 in the first match to 7.8 in the second, and I maybe made 1 extra assist from a cross than the first match.

Another example is on Legendary, the opposition never gets called for offside - on World Class the first offside against Bolton was in the first 30 seconds of gameplay.

The difference between the 2 levels is just way to big. There should be a middle ground where the  game is tough, but roughly even.

I get that there needs to be a difference for different team levels and the game probably accounts for formations and tactics etc as well. But the example I have given shows this happens when it is exactly the same team!