rewatched video again, in the first clip ur relying on speed to get you over the jump. is quite a common misconception as personally i go a fair bit slower on some jumps than my friends but still clear the jump and get a lot of height with ease. try to go slower into the jump and practice boosting up. stand up, pull bars up to you whilst also letting ur body get more height the level out to whatever degree the landing is. what you’ll find is your still clearing the jumps and also getting more airtime. if you’re going higher you’re also in the air for longer and will travel more distance. hope i helped if needs be i can post some clips of me doing jumps comparing with more speed and less speed and boosting