For most day to day cases, rust will actually compile faster because the build system will do good incremental builds - not perfect, but better than c++. Also clean builds are still “perfectly” parallelized by default.
And yes, while rust has a reputation for being slow, in my experience it’s faster for most projects you encounter in practice because the c++ ecosystem is generally not parallelized and even if it is many projects have poor header hygiene that makes things slow.
And yes, while rust has a reputation for being slow, in my experience it’s faster for most projects you encounter in practice because the c++ ecosystem is generally not parallelized and even if it is many projects have poor header hygiene that makes things slow.