Can you make the game more light on the soft side?

I always enjoy playing games.　I always enjoy playing games. This time, I have a suggestion regarding game processing.
My computer is a Windows 11 computer with a COREi9 10900 CPU and RTX2070 GPU, which is above the recommended specs listed on steam.
(The resolution is WQHD, 2560x1440).

　However, on a map with "pixels256x256 (recommended)", after 1/3 of the map was used and the population exceeded 900 animals, the game became slow and choppy.
　I tried setting the game speed to the lowest, the image quality to the lowest, and the resolution to "1920×1440 (FullHD)", but the game was still heavy and choppy.
　Please make it a top priority to enhance the stability of the game so that the game can basically run longer than adding items.
　If you don't do this, you will have more people quitting this game and having negative opinions about it.
　Please make the game playable on any computer with the recommended specs or higher.