What these do:
When your city grows past 50,000 citizens, your CPU becomes the primary performance bottleneck. Adjust your building habits to keep the simulation running fast: cities skylines settings for low end pc better
The most significant performance drain for any PC is the rendering resolution. For a low-end system, running the game at native 1080p often demands more pixel-pushing power than the integrated GPU or entry-level card can provide. The single most effective adjustment is reducing the display resolution to 720p (1280x720) and, correspondingly, setting the “Display Scale” to 75% or lower. This drastically reduces the number of pixels the GPU must calculate each frame, directly increasing frames per second (FPS). While the image will appear softer and less sharp, the trade-off is a playable, stutter-free simulation, especially when a city surpasses 20,000 citizens. What these do: When your city grows past
Dynamic resolution mods (cause instability), HD texture packs, and traffic AI mods. The single most effective adjustment is reducing the
: No Shadows or Low Shadows . Shadow rendering is exceptionally demanding on the graphics card. Turning them off can instantly net you 5–10 FPS.
The game is notoriously memory-hungry, especially with mods and custom assets. Even vanilla gameplay can consume 6-8GB of RAM on medium-sized cities.