I do sometimes slow down, but more as an aid to getting my mindfulness back to what im doing, if I have problems for a moment, it is something I would recomend doing as appropriate but cooking isn't one of the situations, as being fast is the virtue in this case, and a safer/easier to wash up, way of doing it, and it is a habit for me while cooking anyway now since I was a chef for a couple of years.
I don't go particularly slow, but instead of walking at 2 miles an hour I walk at 1mph just half my spead for a little while and the same goes for slowing down for me as a rule of thumb I employ for it.
number one rule for anything is appropriateness, and part of this is safety.
He who knows only his own side of the case knows little of that. His reasons may be good, and no one may have been able to refute them.
But if he is equally unable to refute the reasons on the opposite side, if he does not so much as know what they are, he has no ground for preferring either opinion …
He must be able to hear them from persons who actually believe them … he must know them in their most plausible and persuasive form.