So I watched 097AceOfSpades run, and I want to know exactly how he is going so fast, I get that using two buttons at the same time can make you go faster due to poor design of the keys, but what tricks are there that can make you go a lot faster? Sorry if I am a noob and don't know anything, I am new to speedrunning this game.

You can get a height boost from the side of a truck (doesn't really have a specific agreed upon name on what to call it), strafe as you said, and late jump to gain extra distance from jumps. There are also portable truck boosts that allow you to fly across the map by throwing a portable truck at a wall, and gain tremendous amounts of speed by having the portable truck hit you. There is one other trick where you can levitate on-top of the trucks in a certain way to gain more speed, but it is a lesser used/known trick. Also yeah, I replied over a year after you posted this but ayy.. why not.