For most intermediate drivers, IMO, the goal is to be able to safely be in command of the car. So that means you already understand the fast line AND why it is fast. You're eyes are up, you're smooth on the controls, you identify potential safety risks early AND you're playing well with others.
When I say in command, you are ahead of the car. You know what happens if you step on the brakes harder. Basically, you are balancing the car through the turns vs accelerating, turning, and braking.
Once you get consistent at that then lap times will become useful and useful.
Just my $.02.
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