Have you tried setting your monitor to 60Hz? This problem with the hangar tends to be solved by that and it may also help with overall performance.
Can you PM me your SSAO.cfg and Bloom.cfg files? There are multiple ways you can configure the effects, so having "All Effects On" can be a bit ambiguous.
I'd say you set ssao_type=Deferred in SSAO.cfg since that tends to give the best performance and keep SteamVR at 50% resolution for now. Bear in mind that it's normal to get 30fps when the screen is busy since this game basically still computed in a single CPU core.