so when i start a division rival some games the aggression is so high that no matter what the opponents do I get the ball in my legs and I dont even need to concentrate and play to score. I could see that I’m overpowering the opponent scoring 7 goals.

In many matches the opposite happens where my defenders lose pace, aggression and are very lethargic. They lose their IQ and their slow defenders could catch up with zaha and jamie vardy special card so easily. 

When the match is in my side Zaha could shoot with perfection and when not aguero shoots like a 8 yo kid. 

is the aggression fixed at the start of the match? I find this to happen more often against me as I move up the divisions. Is this related to how much money you spend on FUT?