Fc26 game speed keep changing randomly

The game speed in competitive modes keeps changing for no reason. Sometimes gameplay feels extremely heavy and slow, and in other matches it feels unnaturally fast. And every few hours in seasons mode, the gameplay dynamic shifts from fast-paced to slow. Player dribbling becomes more realistic with loose ball control, passing requires longer time for the player to control, and physical body challenges become much harsher. (this also affect offline mode and online)