Performance impact of Focus panel with no handlers?

I made a game engine that used a lot of focus panels on an absolute panel. - essentially everything on the panel is within a focus panel in case in needs pointer interaction. The absolute panel they are on is bigger then the screen and can move.

umm...was this me being an idiot?

If theres a hundred focus panels with no handlers attached, is that going to be significantly impact on performance?  I could ensure only things that potentially have actions get put into focus panels, but not sure if the development changes will be worth the performance boast.

Any insights?

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