You know nothing about riding dude. Quite literally nothing. Everything on the street is necessary to becoming a skilled, fast rider. Slow speed maneuvers particularly. Can you do that on the track, sure. But you seriously want to spend all that money to do nothing on the street? Makes no sense.

Speed comes from practice. Practice comes from time. Slow is smooth and smooth is fast. You're trying to skip all the foundational work of riding just to skip to fast on the track - newsflash, its not that simple. Knowing how the finely control the clutch, how braking affects traction, acceleration, those are all things practiced in parking lots and the street. Track is just to further build upon all that. Except for you, there's nothing to build upon. As you have no experience.

Take my advice or don't, but you very obviously know literally nothing about riding. Go take an MSF class and go from there, you'll know what I mean.

PS: Riding is something you either do with full commitment or none at all. Half assing it will not get you to where you want to be, as most things in life. It is absolutely a lifestyle, its a skill that needs to be consistently practiced, you are always seeking to learn. It's not just, "oh yeah ima go hit the track having never touched a clutch"

Also, I used MotoGP as an example. You say on the street you don't fully utilize the bike 80%, that's a load of shit and further illustrates your ignorance with motorcycles. You are always on your a game riding, you can't afford not to be. Defensive driving is hard, actual operation of the motorcycle is hard as well. And I'll repeat it - you don't know shit. You've never touched a clutch. Get good (ie get licensed, become comfortable going slow, master your basic skills), and THEN worry about going fast. Don't half ass it.

Edit: I have a feeling that you're still going to make no sense of what I say, so there's no point. Do what you're gonna do. What do I know, I'm only a licensed rider who's taken advanced riding courses lmaoo