Ultimate Team Bug and Lag problem

Bug and lag issues When playing matches in Ultimate Team mode, there are no problems in the first half, but in the second half, immediately after the cutscene, the game crashes and lags to the point of being unplayable. This applies to AI matches as well. I bought the game 4 months ago, and it's been like this since the day I bought it. I haven't been able to get my complaint across. Please help.