Car very slow to start after driving shutdown and restarting

What is your question?

Car starts normally after sitting over night. Make a stop on the way to work; attempt a restart then very very slow starter motor to no turning of starter at all. Car has new battery, cable harness and Acura diagnosed starter for a week and came back with no problem found. I am wondering if there is some kind of vapor lock going on and or if I turn on the key and move the gear sifter the car starts but turns over very slow. Anyone else experience this, if so what was the problem? THX