AI to fast in straight line.

Yesterday i tried to do a Daytona 500 race with Formula USA Gen 2 but the AI opponents had a clear speed advantage around the Daytona oval even though the ai skill level was set to the lowest. To test my theory that ai drivers have better straight-line speed i tried other high-speed circuits like Bathurst and Nürburgring. I could clearly see the ai catching up to me on the long straights. I think that there is an issue with player cars having less acceleration than ai drivers because on a tight and twisty circuit i can eventually lap every single ai car with enough laps set. This with the ai at the lowest skill level and max opponents. I can't seem to win on high-speed circuits and ovals even with the lowest ai skill level set. Can anyone tell me what the problem is or what you think i am doing wrong?

 

If it was a file of cars it's probably due to the slipstream effect. I did the same race and i didn't have this problem except the slipstream effect.
If I am alone too far from the file to have the slipstream they are faster around 5-10 MPH but it's normal, it's a common feature of oval races where slipstream is so important. Don't be alone on track or you're done. In such case i just pray for a full yellow so I can join the horde.
I drive at 105 AI level and generally am faster than ai in curbs and equal in straight line.

 

Another possibility: Maybe your brake pedal is oscillating; it happened to me with my old pedals every time the potentiometers were dirty. You can check the pedal app/widget in game if signals are sent by the brake pedal.

 

Just to clarify I was using my Xbox one controller I don't think it is drafting/slipstream problem because the ai caught on the very long last straight before the start/finish straight on the Nürburgring. the ai was clearly out of drafting/slipstream range because I had a nearly 4 second lead over 2nd place. I was in a one make Copa Montanna race. when I entered the straight, I could not see the next car in the rear-view mirror.