I'll agree with one modification: developers should be forced to test on a much slower machine.

My final compiled binary runs much faster than something written in, say, python or javascript, but my oh my is the rust compiler (and rust-analyzer) slow compared to the nonexistent compile steps in those other languages.

But for the most part the problem here isn't developers. It's product management and engineering managers. They just do not make performance a priority. Just like they often don't make bug-fixing and robustness a priority. It's all "features features features" and "time to market" and all that junk.

Maybe make the product managers use 5-year-old mid-range computers. Then when they test the stuff the developers have built, they'll freak out about the performance and prioritize it.