EA Why?

From last night I  noticed a big Improvement in my gameplay everything seemed to work well their was very to no input delay passing was precise jockey actually worked i was able ro tackle opponents and my players was sprinting fast dribbling was perfect honestly couldn't fault the gameplay and I finally reached division 4 well from last night I reached division 4 play again earlier and gameplay was still excellent then all of a suddenly  everything stopped working passing became less accurate and wrong direction and straight to  opponents my players stopped sprinting they became visibly less physical and the delay input started again I don't understand how the gameplay can go from perfect to unplayable in such a short space of time I was actually starting to enjoy the game for the first time