Unity5 standard shader can be used on mobile devices?

Unity5 standard shader can be used on mobile devices?The same set of resources when using legacyShaders/BumpedDiffuse can run to more than 50 frames per second, after using unity5 standard shader can only run to 30 FPS.I want to ask is this normal?I didn't use any other map, only a texture of 512 * 512, the target model is huawei honor 6 plus.