Guys !
I found some tweaks not mentioned here before but they helps a lot.
1. Go to Task Manager and kill "HtcIdentityService " and " HTCVRMarketplaceUsersContextHelper" proces
seems to help remove a ~1 second frequent studder or tracking lost issues.
I've had it and it's gone after this little improvement.
2. Go to Steam VR Settings and mark 2 things
- force reprojection on ( under Direct Mode) in Developer Menu ( give balance between CPU/GPU - more FPS in ED)
- run Steam VR when open apps - some users noted better scale ( body , planets) and game colours , less blur
Since now run game without Steam/Steam VR
I'm showing that on printscreen but I have localized Steam and Win 10. Sorry for PL language.
http://imgur.com/a/DnOcM