What's this in Shape Painter object

Hello, everyone. I am using a Shape Painter object in my game and saw this parameter.
Although, I understood what it does by reading its label/description, but what is its use? Does it help in performance :thinking:?

Imagine drawing a line that you want to follow the player.

If you have that checked, you will see just the line moving and following the player, as you’d expect

With that unchecked, you will see a line for every single frame as the player moves.

I think I got it (20 char)