Dude, that's not how to think about sex. The fact that you are making it a
"left brain" subject of analysis in terms of times and numbers is what often kills sex. It has to be a "right brain" experience of free fantasy and unconstrained indulgment of contributing feeling and thoughts to lead to satisfaction. Both men and women can have sexual impediments until they come out of the dominance of numbers and time--how long foreplay? how long penetration? how many down strokes? how many upstrokes?