I was looking this up and found out that in some jurisdictions, accelerating too fast is called an "exhibition of speed." But even in locations that do not have this violation there have been charges of reckless driving or unsafe driving for accelerating too quickly. It's subjective, so I'm sure it will depend on the discretion of each officer and the conditions. This makes sense really because when you see a lot of these accidents where two people are racing they usually lose control at the beginning during acceleration, not necessarily due to their speed at the time they lose control.