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I'm doing the UX for an app that communicates with bluetooth devices. Unfortunately, all bluetooth traffic is routed through our cloud backend which occasionally makes the app slow. To deal with this I would like to define some performance goals, for example "Response time for bluetooth actions should be less than 1000ms".

Instead of making up arbitrary performance goals myself I would like to base them on existing research or best practises. This would make it much easier for me to argue for spending time on improving performance.

  • For web pages I found a model by google called RAIL that could perhaps be applicable in a mobile app too.

  • I also found an article by Jacob Nielsen that discusses response time limits in general.

Are there any other UX guidelines, models or best practices that concerns performance in mobile apps?

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Google puts the mark at 3 seconds or less. See https://www.thinkwithgoogle.com/marketing-resources/data-measurement/mobile-page-speed-new-industry-benchmarks/

Most industry sites and apps exceed this limit, but it's worth shooting for, especially in the mobile context where anything less than an immediate response reads as broken.

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