That is one reason to choose Rust, but that is far from the only reason to prefer Rust over Go. I've found that algebraic data types and pattern matching have become irreplaceable parts of my programming toolbox, to the point it is painful to work without them. Rust also has a powerful macro system that Go cannot match.

This is not to say that Rust is better than Go in every way, but performance is far from the only facet when I compare the two.