[2021] CK III - massive performance drop when gathering huge army composed of many small units

Where in the world did you get a 3000 series GPU, friend?!

Thank you very much for the report! I have logged a ticket in our database for further investigation.

Good luck on your future endeavors in CK3!  

I bought the 3070 9 months ago by a far lower price than offered today. Some black magick witchcraft was involved, yes.

Dodged a bullet there, very lucky! Congrats!

At any rate, I've added a bug into our database on your behalf! Have fun out there on your 3070 (and don't just break the game with half a million troops please).  

I reckon the performance is quite tied to the amount of calculation the game has to do for each troop - thus, larger armies and realms tend to slow the game down considerably due to the amount of computing it has to do to account for each army stack.