diff --git a/simulators/ursina/ui/control_handler.py b/simulators/ursina/ui/control_handler.py
index 1029caecba4aa95bec61b18340b87edc2bc82c80..a6fefe4918ca3e2492edf5723495c177b9a792a9 100644
--- a/simulators/ursina/ui/control_handler.py
+++ b/simulators/ursina/ui/control_handler.py
@@ -227,10 +227,17 @@ class ControlHandler(EventHandler):
         elif key == '-' or key == "- up":
             self.slider_decrease(self.ui.slider_run_speed_factor)
         elif key == 'n':
+            import math
+            # min=0.01, max=20
             #   # ', up' <  > '. up'   n    m
-            self.slider_decrease(self.ui.slider_control_speed_factor, 10)
+            self.ui.slider_control_speed_factor.current_step = self.ui.slider_control_speed_factor.value/2
+            self.slider_decrease(self.ui.slider_control_speed_factor, self.ui.slider_control_speed_factor.current_step)
+
+            print(self.ui.slider_control_speed_factor.current_step)
         elif key == 'm':
-            self.slider_increase(self.ui.slider_control_speed_factor, 10)
+            self.ui.slider_control_speed_factor.current_step = self.ui.slider_control_speed_factor.value
+            self.slider_increase(self.ui.slider_control_speed_factor, self.ui.slider_control_speed_factor.current_step)
+            print(self.ui.slider_control_speed_factor.current_step)
 
     def slider_increase(self, slider, step=50):
         """
@@ -239,7 +246,7 @@ class ControlHandler(EventHandler):
         @param step:
         @return:
         """
-        run_speed_factor = slider.value + slider.step * step
+        run_speed_factor = slider.value + step
         if run_speed_factor > slider.max:
             run_speed_factor = slider.max
         slider.value = run_speed_factor
@@ -252,7 +259,7 @@ class ControlHandler(EventHandler):
         @param step:
         @return:
         """
-        value = slider.value - slider.step * step
+        value = slider.value - step
         if value < slider.min:
             value = slider.min
         slider.value = value
diff --git a/simulators/ursina/ui/control_ui.py b/simulators/ursina/ui/control_ui.py
index 8c744bdfd0c821f6f1bf4773cb85d32bfe7862bb..de545d102164ea1a6ded166a141bca18bc1c83b1 100644
--- a/simulators/ursina/ui/control_ui.py
+++ b/simulators/ursina/ui/control_ui.py
@@ -30,10 +30,11 @@ class ControlUI(UiPanel):
         self.no_trail_button_text = "○ "
         self.trail_button_text = "○--"
 
-        self.slider_body_spin_factor = UiSlider(text='自转速度', min=0.01, max=30, default=1)
+        self.slider_body_spin_factor = UiSlider(text='自转速度', min=0.01, max=5, default=1)
         self.slider_body_size_factor = UiSlider(text='天体缩放', min=0.1, max=100, step=0.1, default=1)
         self.slider_run_speed_factor = UiSlider(text="运行速度", min=0.01, max=80, default=1)
-        self.slider_control_speed_factor = UiSlider(text="控制速度", min=0.01, max=20, default=application.time_scale)
+        self.slider_control_speed_factor = UiSlider(text="控制速度", min=0.01, max=20,
+                                                    step=0.1, default=application.time_scale)
         self.slider_trail_length = UiSlider(text="拖尾长度", min=30, max=500, step=10, default=UrsinaConfig.trail_length)
 
         self.on_off_switch = SwithButton((self.pause_button_text,
diff --git a/simulators/views/ursina_view.py b/simulators/views/ursina_view.py
index b68de624cc8fd41a537b8d3019f50c4412fd53d2..00503fccf2120f45b52c4ae483a3205eb13eef67 100644
--- a/simulators/views/ursina_view.py
+++ b/simulators/views/ursina_view.py
@@ -285,9 +285,16 @@ class Planet(Entity):
             self.clear_trails()
 
         if hasattr(self, "name_text"):
-            # 计算相机和实体之间的距离
-            distance = (camera.world_position - self.world_position).length()
-            # 根据距离设置文本缩放比例
+            d = (camera.world_position - self.name_text.world_position).length()
+
+            if d < self.scale_x * 1.22:
+                self.name_text.visible = False
+            else:
+                self.name_text.visible = True
+            # print(d, self.name_text.text, self.scale_x ,self.scale_x*1.23)
+            # # 计算相机和实体之间的距离
+            # distance = (camera.world_position - self.world_position).length()
+            # # 根据距离设置文本缩放比例
             # self.name_text.scale = distance / 10
 
     def follow_parent(self):