I agreed with you that sbcl has usable performance (like c and fortran compilers). I disagreed that its performance is state of the art or particularly commend

I agreed with you that sbcl has usable performance (like c and fortran compilers). I disagreed that its performance is state of the art or particularly commendable. Are allegro and lispworks appreciably better? My understanding was that lispworks, at least, forked from cmucl a long time ago and put less work into python than sbcl did.