We stopped through here several times during our stay up the road, usually on the way out of town for a southwestern adventure of some kind.
That usually meant that we were going to coming through during rather busy morning hours.
The drive through line moves pretty quickly, even when ordering 4 drinks for our one very full car of people. I got familiar Sbux drinks and was happy enough with what I got.
S'all good. You'll get your caffeine (or slightly coffee-y sugar bomb beverage...to each their own) and be on your way in no time!