That's very long :O
On my biggest savegame it took 3 minutes.
Unfortunately, I cannot change that. It’s how the core artillery works.
I tested some scenarios.
I think chunks that are further away from the player are loaded less often. If you visit your borders the game will recognize the enemy a lot faster and the artillery will shoot earlier.
If the artillery begins to fire it wont stop until the last nest is destroyed.
When there is no pollution the chunk is loaded less often.
Sometimes not all artilleries begin to fire at one target.
And I also think it’s related to the savegame how long it needs to process.
Radars don’t seem to change anything.
The artillery seems to “scan” in a growing clockwise circle.
