Wireframe appear one by one when the cursor is directed to a 'solid bodies'

I have more than one 'solid bodies' in the 'drawing part'. When I want to hide the body and show the body another, the cursor as I point  on the solid bodies in the Feature Manager always displays first wireframe highlight one by one and can not all at once, so that the command of 'hide' or 'show' a long time. Can anyone help to resolve this?

Thank you

Langgeng

SolidworksGeneral