OK folks, I've been watching this one for decades. You come across a Windows user shaking his fist in frustration, hissing "why is this so slow?!??!!"
It wises you up when you see the complainer has a brand-new top-flight PC, while a few doors down the user of the five-year-old Macintosh is contentedly completing his work. If the software were really serving you as it should, a few seconds wouldn't really bother you.
Speed is not the problem. These users are frustrated because they are not achieving what they want with the software. Consequently they keep groping around at one futile attempt after another, becoming angry because 25 ten-second failures is taking longer than a single half-minute success.
Let's use a foodie analogy. Your microwave ovens has terrific performance turning top-grade filet mignon into a flavorless blob of flesh. But if you have more knobs and buttons, you can keep trying! Then you will complain when each failure took too long!