Hello all,   Here are what my settings look like for smooth 4K (3840x2160 resolution) performance over central London in both a simple aircraft (Trike) and a complex GA aircraft (DA62, Glass Cockpit).    I am getting 30-45fps depending on aircraft and view, but it rarely goes below 30.   I have zero prepar3d.cfg tweaks. Not one.   There is no rocket science being used here, I'm just being sensible with sliders. I've saved it to a "LONDON - GA" profile for