The Portsmoor Abysm · published · build 23401441
This update contains two new settings related to performance, and a minor UI update:
The number of floating dust particles can now be pared down, all the way to zero if desired.
Atmospheric effects such as fog and light shafts can now be disabled
A new system for informing the player in the few cases where settings are not applied immediately
None of these are likely culprits, but can be tried if you run into performance problems. I hope you're enjoying the game!