Welcome to the club bro...i am having same issue pretty much. Starting WL with like 5:0 / 6:0 THEN magic starts to happen. I am starting match ping is 4ms, then it jumps just like that to 40ms, my players can do nothing, i am loosing 4:0. Ping goes back to 4ms, i score 6 goals, then ping jumps agaun to 40 and i loose 7:6. All the time wheb its even, i am getting back ping goes up, i concede few goals, and then when i am not able to anything anymore (like 80+ minute) ping goes back to 4 ms...and then my WL is 5:4 / 6:6 etc. Its riddicoulus. I am literally loosing not cause of my skills, but just the game says "nope rhat guys needs to win". What is even more frustratung when u clearly see opponent plays nothing....my last fifa this year
