Gameplay sliders - what do they affect?

Okay. Please hear me out and help me.

I'm  new to the NHL series. Playing Be A  Pro mode as a goalie.

What does CPU gameplay sliders change? Does it affect all (like, both my teammates AND my opponents) characters or just the opponents? Or just my teammates?

Same type of question  for HUMAN gameplay sliders.

And, again, the same type of question for "AI learning", "CPU difficulty adjustment" and e.t.c.

It's just that when I select an easier difficulty - that's not hockey, it's turning into kindergarten! My team doesn't do anything and no shots from opponents either. But I don't want to get frustrated or challenge myself so much that I'd start to hate this game.

English is not my native language so  it's hard enough for me to play it! And I also couldn't find more detailed or more 'simple' explanation for gameplay sliders menu.

Thank you to anyone who'll help me!