The only time playing decisions are a factor is when they hit/split more often in high counts or stand more often in low counts. This effect is insignificant compared to the game speed issue.
Over a large number of shoes it really does come down to the speed element as you point out. How the bad player plays her cards really doesn't matter -- as long as she does it quickly.
Hey pal, get your mind out of the gutter! This is a blackjack website. We discuss blackjack techniques. Not those back alley techniques. There are plenty of "those" websites out there if that is what you are looking for. Keep those posts clean. geeez
