Timer Sensor refreshing the screen every time it fires

I added a countdown timer to a game. Everytime the sensor fires the whole app refreshes causing the screen to blink. Is there a way to eliminate this issue. Thanks.

To eliminate this, you can use Clolumn, which has a button with a background image, covered with a transparent Column with absolute positioning to prevent pressing the button.

The use of Column with the background image is unstable, so I do not propose it.

You can also try using WebViewer with the image inside it, but personally I use the first method - it is a complex, but more versatile option.