I don't think it's a setup problem, it sounds more like a technique problem. You might need to take tighter lines and carry more speed. If you can keep it at or above like 38 MPH (60 KPH) through the first right-hander, no less than like 35 (56) around the tight left-hander, flat out through the right-hander just after it, then 35 (56) around that last hairpin and feather the sweeping right onto the finish straight just enough to keep you on track you should probably be able to get it. From about lap 3 on I was able to claw back about 5 seconds a lap, so as long as I was around 10 back with 2 to go I could make it up. Just keep it clean and try not to bump other cars and scrub speed.