Having spent all day working on timing-related problems (displaying video) the answer isn't clear cut.
Let's say you miss the bus to work. Is that because the bus came too early, you got to the bus stop too late, catching the bus was a bad idea in the first place, you can't run fast enough ... timing problems can be tricky to solve.
However back to reality for a moment, taking time to display debugging information will slow down the rate at which you collect that information.