Cities: Skylines easily exhausts 8GB or 12GB of system RAM. Expanding your Windows virtual memory (Pagefile) on an SSD prevents the game from crashing when your physical RAM fills up.
Shadow rendering requires massive CPU and GPU coordination. Disabling this provides the single largest FPS jump in the graphics menu. High cities skylines settings for low end pc better
For more advanced users, here are some additional tweaks you can try: Cities: Skylines easily exhausts 8GB or 12GB of system RAM
Turn off browsers, streaming services, and unnecessary background tasks to free up RAM. 2. Best In-Game Graphics Settings for Low-End PC Disabling this provides the single largest FPS jump
To optimize Cities: Skylines for a low-end PC, you must prioritize reducing the load on your CPU and RAM, as these are the primary bottlenecks for the game's simulation and asset management.
Go to Settings → System → Display → Graphics Settings:
What these do: