Does Norton SystemWorks 2009 (Ver. 12) offer same protection and performance like NAV 2009?

Does Norton SystemWorks 2009 Version: 12.0.0    Build: 52 offer same protection and performance NAV 2009 do?

would my system be fast and protected if I replace my NAV 2009 with norton system work 2009?

 

forgive me about my bad English