1) Best on stage 2) Better on stage 3) Do a bit better than 4) Do better than, onstage 5) Perform better than 6) Surpass on the stage 7) To outdo in acting 8) Upstage onstage 
• (v. t.) To do or beyond; to exceed in acting.
Out·act' transitive verb To do or beyond; to exceed in acting. [ R.] « He has made me heir to treasures Would make me outact a real window's whining.» Otway. 
to outdo in acting.