diff --git a/overcooked_simulator/game_content/player_config.yaml b/overcooked_simulator/game_content/player_config.yaml
index 4e863b3d5a470b3c094cfb4c75362f96011eeddc..7387659aa3919ca3315269cbe0ca97c3460aac89 100644
--- a/overcooked_simulator/game_content/player_config.yaml
+++ b/overcooked_simulator/game_content/player_config.yaml
@@ -1,3 +1,3 @@
 radius: 0.4
-move_dist: 0.2
+move_dist: 0.12
 interaction_range: 1.6
\ No newline at end of file
diff --git a/overcooked_simulator/gui_2d_vis/overcooked_gui.py b/overcooked_simulator/gui_2d_vis/overcooked_gui.py
index f2ba8fa3908ed8f859f0e8257d94d2aaa116bcef..47edef81a9d458845866438dca2e7a387d1b7ad5 100644
--- a/overcooked_simulator/gui_2d_vis/overcooked_gui.py
+++ b/overcooked_simulator/gui_2d_vis/overcooked_gui.py
@@ -96,7 +96,7 @@ class PyGameGUI:
     ):
         self.game_screen = None
         self.FPS = 60
-        self.simulator = simulator
+        self.simulator: Simulator = simulator
 
         self.player_names = player_names
         self.player_keys = player_keys
@@ -579,6 +579,7 @@ class PyGameGUI:
         self.simulator.start()
 
     def change_to_start_window(self):
+        self.simulator.stop()
         self.menu_state = MenuStates.Start
         self.back_button.hide()
         self.quit_button.show()
@@ -604,6 +605,7 @@ class PyGameGUI:
         self.setup_simulation(config_path, layout_path)
 
     def change_to_end_window(self):
+        self.simulator.stop()
         self.menu_state = MenuStates.End
         self.start_button.hide()
         self.back_button.show()
@@ -686,8 +688,8 @@ class PyGameGUI:
 
                         game_screen_rect = self.game_screen.get_rect()
                         game_screen_rect.center = [
-                            (self.window_width) // 2,
-                            (self.window_height) // 2,
+                            self.window_width // 2,
+                            self.window_height // 2,
                         ]
 
                         self.main_window.blit(self.game_screen, game_screen_rect)