help me, I'm so lost on how times such as theses posted here are possible, could some explain it to me

Hey there, long time Kinetica fan and new runner. I think the biggest strat is mastering the drift boost (tapping square and double tapping X to get a free short boost) and being mindful of what shortcuts are worth taking. Greck seems like the best option because of his maxed speed/acceleration and high grip stats. Looking forward to improving my times and seeing what we can come up with!