I’ll be patient most of the time, but this isn’t a one way street. The other person should also have situational awareness to make room, not block the entire path, not jackknife their cart. Also my desire to go fast is equally as valid as their desire to meander / dilly dally. As long as I’m not running them over there is nothing wrong with shopping at my pace, saying excuse me, or passing them when they are taking too long.