Heh. This is such a C++ thing to say: “I want to do the right thing, but then my code is slow.” I know, I used to write video games in C++. So I feel your pain.

I can only tell you: open your mind. Is Rust just a fad? The latest cool new shiny, espoused only by amateurs who don’t have a real job? Or is it something radically different? Go dig into Rust. Compile it down to assembly and see what it generates. Get frustrated by the borrow checker rules until you have the epiphany. Write some unsafe code and learn what “unsafe” really means. Form your own opinion.