I Don't Understand the Math

So we're still at the first charging stop - here's the weird thing.  When we first left the car had our first stop in Topeka, KS, about 200 miles away.  It also had an arrival time in Vail of about 7:30pm.  Then the car wimped out and decided that we needed to stop sooner - Independence, MO (where we are now).  Fine, it happens, our mileage wasn't as good as we were hoping I guess.  But then when we check our expected arrival time it was moved up to about 6:50pm. 

I'm trying to figure out how and why this would be but I can't get my head around it.  You would think that there are two key principles when it comes to charging: 1 - less stops are better, and 2 - the car charges faster on a lower battery.  This unexpected stop though seems to break both those rules.

Any help from some more experienced Tesla people out there would be appreciated.