i think you will find the power barely adequate to start... and frustratingly slow in a couple of weeks.
Try and find a 500 parallel twin or I4 , or an SV 650. v-twin.
With these, you will find them scary fast to start (relatively...) , but with adequate power once you get used to it.
The other thing to remember is the bike goes as fast as the RIDER tells it to...
not the other way around...ride a 1000 cc , 170 hp rocket ship at 1/2 throttle or below, and it is very easy to ride. Treat the throttle like an on/off switch at medium revs or higher, and you WILL! die... the INCREDIBLE acceleration is what gets inexperienced riders into trouble, and that requires a big twist and hold...! Also, losing the back end is a result of too much throttle most times as well...
Most 600 cc sport bikes, for example, are fairly docile until you get way up on the tach. Keep the revs lower, and they ride like a 250, sort of...!
You just don't want to HATE the bike 'cause it is too slow... which almost everyone who buys a 125/250 does...
Learning to ride is a super steep learning curve, no matter what you start on...!