Sometimes our game engine (Unity) gives the stutter effect while running in the default (DirectX) mode. You can try enabling OpenGL mode. That can help you to run the game smoother on some configurations.
To do this:
- Open your Steam library in the Steam client and right-click on the "Graveyard Keeper" game and select "Properties" in the popup menu.
- Under “General”, “Launch Options”, enter "-force-opengl" (without quotation marks) in the popup box and press OK.
- Run the game