Both Lisps (Common and Scheme) are garbage-collected, so they're in the 'slow as molasses' group of languages (which covers pretty much everything outside of C, C++, Rust, Fortran, Pascal, Ada, and assembly); but among the 'slow as molasses' group, Common Lisp (at least SBCL, which may be the most prolific implementation) is blazingly, scorchingly, stupendously fast. If you know how to use it it's a bat out of hell outrunning greased lightning.

On the Scheme side of things Chez is pretty fast. It's not 'I've gained a whole new level of respect for the people who engineered my CPU' levels fast, but it's still pretty decent.