Impossible, Irritating, And Irrational

I am a 3D animator. A client asked me to do an animation of his product doing a 360 rotation with a duration of twenty seconds. I sent him a preview.

Client: “This looks great, but can it be a little slower?”

Me: “Sure! We can extend the duration to… say, thirty-five seconds?”

Client: “No, I need it slower in the same duration.”

Me: “So… you want the same full spin, for the same twenty seconds, but slower?”

Client: “YES.”