We're also working on improved performance and eliminating the stutters, and you can help us! We have a beta branch open with these improvements (wip), since we can only test on 5 different hardware setups, we would love to hear what these changes do on your setup!
How to install:
1) Right Click Galactic Vault in Library -> Properties -> Game Versions & Betas:
2) Enter code: optimized0904
3) Select the branch and let your game update
Note: The save is shared, you will not lose any progress when switching back (or when the patch comes out)