Me & the old man blasted the highlands recently, me on my fzs600, him on his early fz6, we had an absolute hoot & i felt that in a straight line my bike had a slight gain over him but he definitely had the advantage on the corners & although he is very experienced i think it was still down to the superior handling of the fz6 & slightly wider tyre.
Not trying to suggest you arent using it as you should but just checking, are you thrashing its tits in because thats what it likes, get the revs up & keep it singing & don't worry about the red line.& you should be busy with the gears on the fazer & ready to pounce.
Ive thrashed my bike alongside R6's,FZ1's,GSXR 600's,CBR's & never felt that i was struggling under normal road conditions & keeping up with more racey bikes is all part of the fun.