message: CMAKE_CXX_COMPILER_ID for MSVC: O2 & Ob2
diff: @@ -31,6 +31,10 @@ elseif (${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
  elseif (${CMAKE_CXX_COMPILER_ID} MATCHES "Intel")
  list(APPEND PERFORMANCE_CXX_OPTIONS
  "-xHost")
  +elseif (${CMAKE_CXX_COMPILER_ID} MATCHES "MSVC")
  + list(APPEND PERFORMANCE_CXX_OPTIONS
  + "/O2"
  + "/Ob2")
  endif()
  add_mfem_miniapp(performance_ex1
  