You may be wrong in thinking all programs require maximum performance? I just find your question a little confusing. My house is only two floors, yet meets all

You may be wrong in thinking all programs require maximum performance? I just find your question a little confusing. My house is only two floors, yet meets all my needs. A bigger house would just waste my time in cleaning, cost me more in maintaining, in heating, etc. It's the same for programs. Target performance at all cost, and for a lot of programs you get a hard to maintain, non scalable, bug ridden, featureless program that took you way too long to build. That's why for example I use Clojure and Rust. Rust gets the least use, because the programs I tend to write can manage fine with Clojure's performance. In fact, I mostly toy with Rust, because I really never needed to write anything higher performance. So I'm just not sure what you mean. The world is full of useful programs that meets the needs of their users which aren't high performance. For all these programs, Lisp is a superpower.