Well i got the same problem you're right charger when i played ax the first thing i did was driving a top3 behind Draguna and Dod with a distance around 700 ml seconds and so on i drove many top1's/top2's/top3's/top4's/top5's and so i got called cheater but i know how gruk was driving in the past. Some months later i saw him driving and at the same time i took a look at the Split Time when i arrived at a straight road he got faster and faster so first i thought was speedhack but no it was speedboost.