For the context, I compared my run with the world record one section by section, and I realise that on the section where the truck is moving my truck was 15 seconds slower despite both starting at the same point.

I synchronised my run and the world record, and I saw that during the whole truck run, my truck was slowly falling behind despite me never going outside of the hack radius.

My only guesses is either, there is a way to make the truck go to an optimal speed that I do not know, OR, since I got an average computer, Payday 3 + OBS make my processor working at 100% and I may be having some minor rollback during all the run, but I hope not

You can see both section times here : My run is here : WR run is here :

I'm nearly 100% sure our truck start at the same position and go the same route, and we both not leave the hack radius

I also posted a thread on steam to see if it's a bug