Yes! I found the options needed to set the graphics quality in the game to what you see in the videos and screenshots (which were done from my development PC).
Stupid (beginner) mistake on my part when building the game. Sorry!
The graphics quality should now be much improved and "as intended". It's possible if you have a low-end machine (i.e. lower than recommended for VR) that the improved fidelity could have a detrimental effect on the game's performance. If this is the case then let me know in the group discussion forums and I'll try to identify what can be done to fix this.
However, I've also been testing on a new PC build with an Intel Core i5 4690 and an nVidia GTX 970 and the game (fortunately!) runs smoothly, so we should be okay to target the game at the minimum VR spec (which is what the GTX 970 is).
What's more this testing was done on an Oculus Rift with Touch controllers and other than needing some better control button assignments I'm pleased to report the game ran well with just the 2 sensors in a "Standing" room configuration.
This new build (v0.18) also contains some preliminary leaderboards on the main menu screen beneath each level selection orb. They only show scores surrounding your own for now, but I'll update these moving forward to show other lists (top, friends, etc).
Please try the different levels again to experience them as intended.