I am playing Skyrim special edition at 768p resolution. I have only 4 GB ram. During playing Skyrim SE only 74 - 80% ram is used. But in the requirements published by Bethesda, 8 GB ram was minimum. So I was wondering, do 20 - 25% of 4 GB ram remain unused during playing Skyrim SE due to low resolution? Will it use more ram (and thus improve FPS) if I upgrade ram to 8 GB?