you sound like me, back in my 20's I ran with a bunch of wild guys on sport bikes, which even lead me to get into tracks and racing them some what(honestly more to get access to legally ride super fast than winning) as for the PO PO, LOL
well lets say I am very lucky I knew so many so well, and others in places, have had a few high speed chases, one that even landed me in jail and a LOT of fines and added costs to having fun! LOL
as even back then was able to laugh it off, now, I'd hate to waste that kind of cash again, on being dumb!
plus these days with so many camera's and radios to get ahead of you, I just cannot afford to play like I used to!
and yes raising the bars and lowering the pegs will make it better, PENDING how tall you are.
I personal would log some miles on it AS IS< before =modding anything, exhausts can make some added HP and sound cool, but they also become to me, annoying on really long rides , pending how they play out!
that's a lot of motor as is, that you will never really be using much IMO, at speed legal limits, you'll just be putting along hardly breaking a sweat on this motor! almost lugging the motor at times LOL
I do miss the bikes I had, and MAYBE some day will get another one, but its hard to go slow on anything made to go fast IMO, my reflexes ain't what they used to be, nor is my vision, so some days I think??? maybe never again, unless I REALLY have some self control, or might end up real fast learning the hard way I am still not old enough ! for anything but more ache's and pains! HAHA