I have recently done a second round optimization of the game and would like to share the current state of it all! I have attached several screenshots showing my rig setup, and general UE4 game stats alongside the FPS.
Some stats on the current performance levels, with V-Sync enabled there is a constant 60FPS everywhere on the ship whilst in the editor. A fully built version can expect upwards of 200+ FPS
All settings are set to maximum and the texture streaming pool size is set to 4GB
Without V-Sync I peaked at 460 FPS whilst staring at the floor, and 96FPS AVG while staring at Saturn, meaning the current build is sufficient for VR.