So it seems that the graphics settings you use may have an affect on your jumps. Yoshipro101 has messed with it a bit and I'm sure he has some info to share but it appears that the graphic settings do play a role outside of making it look good/bad.

The Landmaster must be against one of the corner spots and be as close to it as possible. Then you want to run at the corner and the Landmaster while holding a bit more to the right (assuming the barrier is to the right of you). Doing this will push you through. There is also an enemy in the background you can line your Landmaster up with.