Not every pause in engineering is lost time. Some are the space where a system becomes understandable.
I have learned to be suspicious of the urge to make every step immediate. A result that appears before its context is ready can be harder to trust than one that takes a moment and then explains what happened. A short delay for a confirmation, a plainly worded warning, or a link back to the thing that changed is often a better experience than instant ambiguity.
The useful pause is not hesitation for its own sake. It is a small invitation to inspect: here is what we did, here is what it means, and here is what you can do next. Good tools do not merely reduce waiting; they reduce the uncertainty around waiting.
That distinction has changed how I think about polish. Smoothness matters, but so does orientation. Sometimes the kindest interface is the one that takes one extra breath before asking a person to believe it.