Roy P Disney said to N Gabler, at D23, that Walt only had two gears, obssession and indifference. Walt Disney was a perfectionist and perfectionism, in common with singlemindedness, requires the capacity to give oneself fully to what one is doing.
It concerns that posture of no self-sparing, coherence and synchrony with what one is doing.
It concerns the unforgiving dignity of only giving one's best.
With such intensity, could a perfeccionist have room for the gear of tepidness, or lukewarmness, or "let's take it out of the way" that most people do?