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: ETS2 – FPS INCREASE GRAPHIC MOD V4.5
Optimizes rain and particle effects to prevent stutters during stormy weather. Tweaks shadow rendering to be less taxing, often
Lowers the density of grass and trees, which are notorious "FPS killers" in more detailed map areas. ETS2 – FPS INCREASE GRAPHIC MOD V4.5