Unused Details Can be optimized?

So I have a question about the Unused details:, I’l give you an example:

So a widget have physics details, in this case I don’t want to put any physic in the widget.
Does this details have any relevance in regards of processement (so it will decrese you fps)?
And if it is relevant ther’s any way to optimise it?

If you aren’t using physics simulation, you don’t need to worry about those settings.