Could be that they were referring to the previous shot and it just took them a while. Im often late on compliments because i just don't pay attention alot of time.
I'm watching TV or talking to others in a bar and smoking my cigars.
even tho this isn't what you described this can happen and does.
You hit your shot.
The other player speeds it up by hitting the (>>) button on the screen. and they see the ending before you do because you are watching it in regular game motion. So even with the lag from your initial hit they see the outcome before you do.
I speed up most of my shots and the opponents just because if im playing coin games i'm probably doing apparel runs and i want them to go as fast as possible.