more speed help...

[kitesurfer73]

Just back from bury indoor did ok just need help on where i can gain some seconds in the race my overall scale speed is pretty slow,
I am running a 9t ezrun on a 23t think most people am racing against are running 6.5t.I would like to get a 6.5t but funds are not allowing that at mo,so how can i gain or progress with the x6? Am also running a standard futaba steering servo which maybe the problem.