FPS/Performance differences in PIE, Standalone

I’m seeing a large difference in FPS/Performance stats while simulating in the Editor, running a standalone from the editor, and running a standalone with the editor closed and from the .uproject file.

I’m not sure if I should worry about this, if I should start performance profiling, or if its a bug, or if its because of resolution differences or something like that.
If it is not a bug, what I have in the scene is one Dynamic directional light with shadows, cascaded shadow maps, terrain and foliage, and a few models. I don’t think the water object is a problem, because the FPS goes up if I’m only looking at the water. 350k triangles. I do have a lot of post processing enabled in the “Show” menu in the viewport. I’m assuming this applies to the standalone as well, and the post process volume I have overrides this. So if I have some post processing turned on in the “Show” menu but removed from the post processing volume, it won’t show that effect, right?
Is this generally enough to cause performance issues?

First is in editor, second is Simulating in editor, Third is standalone run from the .uproject with the editor closed. Standalone runs from the editor at a set 62 fps.