Lowering Mirror Quality and Mirror Distance is the single most effective way to gain FPS in urban areas.

Always ensure the game is in Full Screen , as windowed modes can cause input lag and lower frame rates.

Tweaks shadow rendering to be less taxing, often a major cause of FPS drops in cities.

While using a mod like V4.5, you can further stabilize your performance with these in-game adjustments:

Check out these guides for additional ways to boost your performance and optimize your settings:

Keep this between 75% and 100% . Going above 100% (supersampling) drastically increases GPU load.