I'm doing the UX for an application that communicates with bluetooth devices. Unfortunately, all Bluetooth traffic is routed through our cloud backend, which occasionally makes the application slow. To deal with this, I would like to define some performance objectives, for example, "The response time for Bluetooth actions must be less than 1000 ms."
Instead of inventing arbitrary performance objectives, I would like to base them on existing research or best practices. This would make it much easier to argue to spend time improving performance.
For web pages, I found a Google model called RAIL that might also be applicable in a mobile application.
I also found an article by Jacob Nielsen that discusses the limits of response time in general.
Are there other UX guidelines, models or best practices that refer to performance in mobile applications?