I have found that if I visit a companion and I'm not crazy about her or she isn't really into it I finish fast.  I'm done pronto.  If I'm with my ATF or a companion I really enjoy the company of I can literally go for hours.  Anyone else have this experience ?

if you request they use some mouthwash.  Then there is no reason to be in a hurry.  

I end up using every second in-between with pillow talk.

The ones I'm not too keen on I send away after the first couple goes.

No.

Because I do my research, and doing my due diligence I do not schedule with someone I most likely will not be compatible with.

Perhaps you should get better at the research part.