FASTBuild has been a game changer for our team recently if you have extra hardware sitting around.

https://www.fastbuild.org/docs/home.html

It does if you have an even remotely reasonably specced development machine.

Your org needs better distributed build caching if you can't get that number lower. All builds should be "incremental" with appropriate caching.

Not everyone in the world who compiles a C++ project is necessarily doing so for an "org"