FC 25 gameplay

I have some questions about gameplay in Ultimate Team when i play Rivals:

Why gameplay become heavy, players become like freeze, and their moves become heavy, speed of the ball become lower, mistakes in passes become often in such cases:

1. when I buld squad with players when their ratio higher than 92
2. first half can be with good gameplay, but second half gameplay become heavy, players become like freeze
3. After substitution (chemistry of my squad  33 before substitusion, and afer) gameplay become heavy, players become like freeze, and their moves become heavy
4. when I win first half, and opponent has not good skill, in second half  gameplay become heavy, players become like freeze

And it can be other troubles:

1. Players lost their positions itself, for example RW with Inside can run itself on the left side 
2. Some times defenders when I press X can accelarate on hyperspeed
3. After switching from one defender to another, it become freezed for one second and I lose position
4. Opponent's players with speed ratio lower than my players can very simply run away from my defenders

Any steps which I make for troubleshooting don't solve my problem:  on/off indicator of playstyles, on/off crossplatform game, changes in graphic settings, updating drivers, on/off graphic card features like anti-lag, vsync and others. I check connection to EA servers and it is good.