diff --git a/src/properties_window.py b/src/properties_window.py
index d6249d5..de233ba 100644
--- a/src/properties_window.py
+++ b/src/properties_window.py
@@ -80,10 +80,19 @@ def show_properties_window(widget, index, window):
     properties_list.add_css_class("boxed-list")
 
     path = str(window.user_data_path) + window.host_flatpaks[index][2]
-    
+
+    def size_thread(path):
+        size = f"{path}\n~{my_utils.getSizeWithFormat(path)}"
+        user_data_row.set_subtitle(size)
+
+    def calc_size(path):
+        task = Gio.Task.new(None, None, None)
+        task.run_in_thread(lambda _task, _obj, _data, _cancellable: size_thread(path))
+
     if os.path.exists(path):
         user_data_row.set_title("User Data")
-        user_data_row.set_subtitle(f"{path}\n~{my_utils.getSizeWithFormat(path)}")
+        # user_data_row.set_subtitle(f"{path}\n~{my_utils.getSizeWithFormat(path)}")
+        calc_size(path)
 
         open_button = Gtk.Button(icon_name="document-open-symbolic", valign=Gtk.Align.CENTER, tooltip_text=_("Open Data Folder"))
         open_button.add_css_class("flat")