“Systems that are designed without any thought of performance rarely perform well, even with an extensive optimization phase at the end of the software developm

“Systems that are designed without any thought of performance rarely perform well, even with an extensive optimization phase at the end of the software development cycle.” I’d go further, if performance is not part of your initial requirements you’ll never get it. Performant systems come from architecture and data modeling. Heck in the modern era data load patterns Trump algorithmic efficiency even. Those things are very challenging to back into a codebase.