First view: camera rendering, taking camera settings into account, but not Lightroom settings (comes from jpeg "preview" embedded in raw file by your camera).
Second view: Lightroom rendering of the raw data, taking Lightroom settings into account, but not camera settings.
You can't have 2nd view take camera settings into account - it'll never be exactly like 1st rendering, since Lightroom won't emulate your camera manufacturer's "image engine".
The "solution" is to choose a camera profile and other default settings, or apply a preset upon import, or shortly after import, to have things look more how you like..
PS - darkening is often a result of highlight protection features of camera, so turn those off (e.g. Nikon ADL, Canon ALO), or be prepared to boost exposure etc. after importing.
Thanks, Rob. Very helpful. I didn't know about highlight protection, will have a look to see how to take care of that. As for the main question I had, I will see if I can make a preset so I can see the best of my photos. I appreciate you taking time to help. I will let you know if I manage to make the changes.
OK, I see ADL is active d-lighting, which I do know about, and don't have on.