I have a Physics Game and don't know which Time Scale to use

GDevelop general
#1

Hello, everyone. I am making a Physics-Based Video Game and I am working on a Pause Feature. When I searched for Time Scale I got 3 Time Scale. These two

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were normal for me but this is not
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And now I don’t know which Time Scale to use. So the question is, which one should I use for my game?

#2

I’m sure the physics only affect the World for all physics objects
The other time scale are related to the layers
And the first one I think not sure is for the game itself

#3

Will layers affect the Physics world?