More speed. Your brain says it wrong, but more speed makes it easier.
So true. Something that helped me was to imagine that ~10-15 ft before (and after) the box, I enter a forcefield where I wasn't allowed to turn. I could wiggle and waggle all I want before the forcefield but once I enter the zone, no turning and no slowing down. I noticed that instead of turning, I responded to the uncomfortably faster speed by changing/correcting my body positioning. This silly mind trick has helped me tremendously with my park progression.