Comment by bdahz

For the simplicity of implementation and code clarity, I need to know how much I need to pay for it.

If the Haskell implementation is 3x slower than C/C++/Rust implementation, it would be acceptable.

If it's 30x slower, I would rather choose C/C++/Rust even the implementation won't be simple.

If it is even possible to be 3x faster than C/C++/Rust, then why not the mainstream programmers adopt Haskell everywhere?