Major time-based things take an inordinate amount of time to complete

[Dr Zoidcrab]

I had problems late joining, took ~30 seconds for the job selection window to appear, doors not opening immediately on bumping into them, projectiles lagging (melee combat is fine meanwhile), consoles taking longer to open etc.

These things seemed to start around the time when fluid simulation was added, so hopefully they'll get ironed out as that gets updated.