set target framerate back to 60

GitOrigin-RevId: 7a97b3cd07

Shared/SneakGame.cs

@@ -30,7 +30,7 @@ namespace SemiColinGames {
       graphics = new GraphicsDeviceManager(this);
       graphics.SynchronizeWithVerticalRetrace = false;
       IsFixedTimeStep = true;
-      TargetElapsedTime = TimeSpan.FromSeconds(1.0 / 120);
+      TargetElapsedTime = TimeSpan.FromSeconds(1.0 / 60);
       IsMouseVisible = true;
       Content.RootDirectory = "Content";
     }