Fps drop when not in viewport



Hey these are the 2 pictures as you can see on the first SS i took the fps is happily sitting on 60fps and in the second picture when open something the Fps just drops like from 60 to 10 or 12 when ever i am hovering over something like blueprint or somethings its happening and this not only happening in the engine when i start unreal to open up a project the fps starts to drop there 2 like it have not even opened and still there is this drop