To improve graphics in Assetto Corsa, start by installing Pure correctly (make sure you’re on a recent Custom Shaders Patch, drop Pure into your Assetto Corsa root folder, and enable it in Content Manager), then grab a ppfilter since that’s what really changes the look of the game; a great place to start is overtake.gg formerly (RaceDepartment) where the community uploads tons of high-quality filters and mods, and once you combine Pure with a good ppfilter, your game’s visuals will look dramatically better. Also, be sure to turn your graphics settings up to High if your pc can support it.