 We show that the representation is both expressive and performant , allowing domain scientists to develop applications that can be tuned to approach peak hardware performance without modifying the original scientific code.
<meaning-changed>  We show that the representation is both expressive and performant , allowing domain scientists to develop applications that can be tuned to approach peak hardware performance without modifying the original scientific code.
 We show that the representation is both expressive and performant , allowing domain scientists to develop applications naturally and port them to approach peak hardware performance without modifying the original scientific code.