Add wait time to loop

preload/main.py

@@ -177,6 +177,8 @@ class Clock:
                     elif button_pressed and v & buttons.TOP_RIGHT != 0:
                         self.setTime(disp, localtime)
 
+                    utime.sleep_ms(23)
+
         except KeyboardInterrupt:
             for i in range(11):
                 leds.set(i, (0, 0, 0))