[Perfectlap]

I don't think you're telling the person to learn to drive faster as much as you realize (when you've learned to drive for real) that straightline acceleration isn't as exciting as it once was once you have a fuller picture of what the car can do.
For example, taking a hard right at 60mph on a closed course or track later makes a 0 to 100 charge on the highway seem like watching TV on a 17" PC monitor after watching on a 60 inch DLP with surround sound.

I actually found myself driving slower on public roads with more professional instruction. Probably because I started factoring the space needed to avoid a wreck with a nitwit in a giant SUV texting on their Iphone. My eyes seem to spend a lot more time darting from left to right and looking further down the road.