A powerful CPU is not worthless if you only run demanding things every now and then. I bought a powerful CPU not because I wanted to calculate pi continuously

A powerful CPU is not worthless if you only run demanding things every now and then. I bought a powerful CPU not because I wanted to calculate pi continuously all day long, but so when I did do something demanding it was able to do that in a reasonable time. 99% of the time my CPU is running <10% usage. Same with most people I'd think.