Comment by tom_

On every project I've worked on, the PC I've had has been much better than the minimum PC required. Just because I'm writing code that will run nicely enough on a slow PC, that doesn't mean I need to use that same slow PC to build it!

And then, the binary that the end user receives will actually have been built on one of the CI systems. I bet they don't all have quite the same spec. And the above argument applies anyway.