Comment by porcoda

Yup. We have gotten into the habit of leaving a lot of potential performance on the floor in the interest of productivity/accessibility. What always amazes me is when I have to work with a person who only speaks Python or only speaks JS and is completely unaware of the actual performance potential of a system. I think a lot of people just accept the performance they get as normal even if they are doing things that take 1000x (or worse) the time and/or space than it could (even without heroic work).