I wonder If Suspension changes anything too.
Suspension gives more grip i think. Same with wings right? The wind pushes the car down which gives more grip. irl and in game.
Lowering the suspension reduces the amount of airflow under the car thus reduces lift force. With less lift generated under the car it will allow more grip to the road aka "aerodynamic grip". It is the reason you see front wings on formula one cars which provides better traction for the car to stick to the road better.
Edit: Also lowering the suspension lowers the vehicles center of gravity to prevent the vehicle from rolling over at higher speeds when taking a turn.