, and while the rest of the variables work fine, the screen doesn't refresh properly (there is this "line" continously moving from the bottom to the top of the window/screen when the camera moves horizontally). I'm getting constant 60fps, so I don't think it's a matter of performance. Could you please tell me if I'm doing something wrong? Thanks in advance.
If the framerate gets limited to 60 fps it's a good sign that LÖVE succesfully told the OpenGL driver to turn vsync on. It's up to the driver and the screen to display the image at the right time. I have this issue too (sometimes) and I suspect my display does something wonky.