I have also have 2 x Samsung Galaxy Tab A9+ (SM-X210) tablets (8GB RAM) running Homey 9.6.X and launched with using Fully Single App for running Dashboards.
Generally speaking it works well and looks great, however after a few days of operation, clicking on objects eventually becomes unresponsive (even simple buttons to turn off a light). I thought this maybe the wifi network, however have spent a bunch of time to optimise (including uplifting to 5Ghz) this and even though it does work better, the user experience still becomes slow.
In the release notes for 9.7 Homey App (yet to be released on Google Play Store) it mentions “Faster and more future-proof: The Homey app now runs on a new internal architecture, resulting in improved performance, smoother interactions, and a more stable foundation for future features.” I am hopeful that this may improve things, but wondered if anyone else experiences the same UX issues (especially with Fully Single App)? Homey - Android App version 9.7 - #9 by Lukasz_Kostek suggests no improvements after 9.7 upgrade, but perhaps this might be just for him.
I was considering testing without Fully Single App for a week to see if the Homey app stand-alone works better. However really rely on Fully App for remote control and battery monitoring which have been very valuable.
Thanks
