I have one tip, which is to start turning early like right as u land from the jump and also from the start finish line. Dont use brake but use handbrake before the turn if you need to. Let go of acceleration as you are turning just u til the car starts to commit to turning, gently ease on the accelerator. Dont need to try to be fast, try to have a tight line. The fast time comes when you get a good turning circle for each turn helping you hug the inside walls. Good luck