Thank you for your response Harry, You accidentally answered the other question I indirectly asked, so the accessory has to be Mfi and if it is then Apple Maps would use the external device, but in those cases would they Apple Maps or other apps still update at 10/20Hz or would it be capped still to...

Harry, and everyone else, I’m not sure that RaceBox Mini is the right solution, yes their GPS receives 25Hz but I don’t think they actually broadcast that to the device. This is from the FAQ of the manufacturer: https://imgur.com/a/WmK0BcS Additionally, beside the point, I asked the manufacturer if ...