My cheap old 3D printer requires constant fiddling before and after every print, yet still fails probably half the time. I avoid printing things sometimes just because I don’t want to deal with it.
I would still agree with you 100%. I hate my HP printer so much.
I used to write extensively with C++, but it has been a long time since speed mattered that much to one of my applications. I still marvel at the cache-level optimizations some people come up with, but I’m in the same mindset as you now.
My workload split of Data Movement vs Data Transformation is like 95:5 these days, which means almost all the optimizations I do are changing batch/cache/page/filter settings. I can do that in any language with http bindings, so I choose those that are faster to write.