Okay… So I had no idea there even was such a thing 
Placed a box reflection capture in the scene and it looks a lot better.
However, the (kind of) same problem is still there; the roughness changes based on camera angle. When I look forward, the floor is much shinier than when I look slightly more towards it.
Looking forward: Darker and shinier floor.
Looking slightly downward: Correct roughness “fades in”
This is exactly like before, only that the roughness now displays properly where before it would not display at all. Only know I could notice that when the roughness was displaying before, it was doing so incorrectly.
Am I being too confusing or do you understand? Thanks