diff --git a/src/gui_left_tabs.py b/src/gui_left_tabs.py
index e2f87bf..f4aea11 100644
--- a/src/gui_left_tabs.py
+++ b/src/gui_left_tabs.py
@@ -1,14 +1,19 @@
 import threading
+import time
 import math
 from tkinter import Canvas, Tk, Frame, Button
 
+# Constants
+FRAME_INTERVAL = 1  # milliseconds, adjust to control the animation speed
+
 # Modified code
 root = Tk()
 root.geometry("1000x600")
 
 from gui_starfield import StarField  # Assuming gui_starfield.py contains the StarField class
 
-container_x = -320
+container_x_size = 320 # Defined size of tab/container
+container_x = -container_x_size
 col_isDark = True
 
 current_container = None  # To keep track of the current container
@@ -17,24 +22,26 @@ close_finished_event = threading.Event()
 def open_container():
     global container_x
     if container_x < 0:
-        container_x += 5
+        container_x += 1
         current_container.place(x=container_x, y=0)
         if container_x >= 0:
+            container_x = 0 # This is stupid, but just to make sure
             pass  # If you need to execute something when the container is fully open, add it here
         else:
-            root.after(5, open_container)
+            root.after(FRAME_INTERVAL, open_container)
 
 def close_container():
     global container_x
     global close_finished_event
     if current_container:
-        container_x -= 5
+        container_x -= 1
         current_container.place(x=container_x, y=0)
-        if container_x <= -320:
+        if container_x <= -container_x_size:
+            container_x = -container_x_size # This is stupid, but just to make sure
             close_finished_event.set()  # Signal that the closing animation is finished
             pass  # If you need to execute something when the container is fully closed, add it here
         else:
-            root.after(5, close_container)
+            root.after(FRAME_INTERVAL, close_container)
 
 def switch_to_tab(tab_name):
     global current_container