Welcome! I'd say you'd be fine in places like, say Ortega highway. Not too steep of inclines (for the most part) and a lot of lower speed corners, but if you hit any higher uphill portions, you'll be slowing down. But with a GZ, you want to slow down for the corners anyways because your max lean angle is a heck of a lot higher than you expect because of how low the pegs are. Just remember to pull off if people pile up behind you and let them by.
I'm in the flattest of the flat states now, but when I lived around some more interesting terrain, most of those roads were the best between 30-45mph anyways.
If you find yourself with just not enough power, you could try the "Stage One" of the
power increase thread. It's pretty simple, all things considered. The hardest part is really just finding the jets to buy (I ended up ordering from aliexpress, personally. Still waiting on them to arrive).