I used to use that burner and I have a gas manifold with a 30psi adjustable regulator. You can get more out of it with the higher PSI but only to a point, at some point the gas is coming out so hard the flames rise up from the burner so they are no longer touching and if you keep going you can blow it out. I had that and the other burner, the kind on the SP10 and you can push that burner much, much harder. I now only use those.
But long story short, yes you can get more out of it.