Fix for #192 .

Let's see if this works.

src/main/kotlin/gdx/liftoff/data/templates/Template.kt

@@ -375,13 +375,17 @@ public class Lwjgl3Launcher {
     private static Lwjgl3ApplicationConfiguration getDefaultConfiguration() {
         Lwjgl3ApplicationConfiguration configuration = new Lwjgl3ApplicationConfiguration();
         configuration.setTitle("${project.basic.name}");
+        //// Vsync limits the frames per second to what your hardware can display, and helps eliminate
+        //// screen tearing. This setting doesn't always work on Linux, so the line after is a safeguard.
         configuration.useVsync(true);
-        //// Limits FPS to the refresh rate of the currently active monitor.
-        configuration.setForegroundFPS(Lwjgl3ApplicationConfiguration.getDisplayMode().refreshRate);
+        //// Limits FPS to the refresh rate of the currently active monitor, plus 1 to try to match fractional
+        //// refresh rates. The Vsync setting above should limit the actual FPS to match the monitor.
+        configuration.setForegroundFPS(Lwjgl3ApplicationConfiguration.getDisplayMode().refreshRate + 1);
         //// If you remove the above line and set Vsync to false, you can get unlimited FPS, which can be
         //// useful for testing performance, but can also be very stressful to some hardware.
         //// You may also need to configure GPU drivers to fully disable Vsync; this can cause screen tearing.
         configuration.setWindowedMode($width, $height);
+        //// You can change these files; they are in lwjgl3/src/main/resources/ .
         configuration.setWindowIcon("libgdx128.png", "libgdx64.png", "libgdx32.png", "libgdx16.png");
         return configuration;
     }