Julia has nothing to do with Lisp. Also a language is neither fast nor slow, the implementation of said language is.

try

    $ julia --lisp

  $ julia --lisp
  ;  _
  ; |_ _ _ |_ _ |  . _ _
  ; | (-||||_(_)|__|_)|_)
  ;-------------------|------------------------------------ 
 ----------------------
  
  > (+ 1 2)
  3
  
  > (exit)