Since you still didn't say exact model numbers this may not apply... But, that said:
Sometimes changing the exclusion mode on GE devices will make them report status faster, which depending on how your logic is working could speed things up.
Note that the in-box driver doesn't let you change that, so you would need to install a user driver to get access to that setting:
But that only applies to the newer model GE Enbrighten quick fit/slim fit devices - which is why the specific model # matters.
The setting I am talking about is:
