In the same Compatibility tab, check Disable fullscreen optimizations to prevent Windows from interfering with the game's display mode. FPS & Performance Optimization
To stop micro-stutters, players on Steam Community recommend finding the GameUserSettings.ini file (usually in %LOCALAPPDATA%\Scorn\Saved\Config\WindowsNoEditor\ ). After adjusting your in-game settings, set this file to "Read-only" in its properties to prevent the game from reverting changes.
Are you getting a specific (like an Unreal Engine 4 crash) when it closes?
Disabling the Steam Overlay in the game properties can sometimes provide a small FPS boost and reduce crashing on mid-range systems. General Maintenance
Navigate to the game's .exe in the installation folder, right-click it, select Properties > Compatibility , and check Run this program as an administrator .