In the Steam directory \SteamLibrary\SteamApps\common\Turmoil , right-click Turmoil_PC_Full and select "Properties" to set compatibility to "Windows 8".
Turn off anti-aliasing in options or switch out of full-screen mode. Turmoil_Fix_Repair_Steam_Generic.rar
If the game breaks due to tampering with files, the solution is often to delete the save file and start over. Turmoil_Fix_Repair_Steam_Generic.rar