I was playing with a friend online just the two of us and we had the same car and same tires. The thing is the in the second lap he lost control and he spin his car so i got a pretty big lead but in one lap he was right behind me again and I was making the same lap time. I told him to get in front of me and I notice that there is something that makes you go faster if you are behind and im not talking about slipstream because the car wasnt in front of me. So is there an option to turn off that lets say boost?