It's an issue with decades old commercial codebases which have been developed with the mindset that it's not worth it to optimize since increasing computer perf

It's an issue with decades old commercial codebases which have been developed with the mindset that it's not worth it to optimize since increasing computer performance will buy it for free. Add to this the 'optimization is evil', 'compiler will optimize it', 'is there a framework for it' mentalities and we are talking of serious amount of professional time wasted using programs that are far more sluggish than they could be.