I don't know if the game can handle more speed on Vert. It seems like the level designers created everything with a height limit in mind.
Yeah, I agree. It’s a fairly realistic height cap, though it has been getting steadily higher and faster over time. It was perfect is 0.26, but the devs have been increasing the speed with every update since - arguably to the game’s detriment. It seems like they have tried to accommodate one section of the playerbase’s demands via broad brush changes to the mechanic, instead of explaining how it works in the first place.
The new changes to max pump speed have resolved this for me, though. I’m flitting between 70-75% with zero assist, and transition has a much smoother and more deliberate flow as a result. By contrast, 0.28 was fast to the point where I stopped skating transition entirely for a while. Even street lines were harder because pumping around banks was giving too much of a speed boost.