Using a Mac is the first thing to stop doing, if you're at all interested in targeting the median case.

Silicon Valley's obsession with high-powered boutique notebooks and the high-frequency replacement cycle of Apple products is in part why so much software that comes from the region is inaccessibly slow.

FWIW, I write software for servers, not clients. But yeah, I understand what you're getting at.

That said, I'm fine with folks using top of the line computers for developing, just not for testing. Nothing will frustrate you more than attempting to use an IDE on a memory and CPU starved system with a spinning rust drive. Nothing prompts you to silly shortcuts more than having a minute plus code/build/test cycle.

But once the coding is done, pull out that netbook from 2012 and make it run fast on that platform.