about 3 years ago - Sleipnir - Direct link
The two most common causes of lag are:
1) You have thousands of items that are being checked for zoning or blueprints.
-You can easily fix this be deleting the items you don't need from the inventory (I) panel.
2) There's some error occurring under the hood.
-As it is an early access game, this has happened for a few people. Not much that can be done, unfortunately as you wait for the next patch to fix these issues.

Pathfinding isn't usually the cause of the problem because I have a pathfinding queue. 30 entities should be fine.

Sometimes simply reloading your save can fix the problem if it's some internal error. Worth a shot.

Anyway, sorry you're experiencing this lag. The next update has maaaaany fixes for lag but it's not quite ready to be released.