Hi Phil
Thanks for the feedback, rest assured we are looking at iOS (and other popular OS platforms) as a matter of priority in 2019.
To add some further context to this discussion... Android currently runs around 75% of all mobile devices worldwide against iOS's 21%. Catalyst also requires a lot of low level optimisation, which also drove the selection of Android as the initial platform for release as this was 'easier' to achieve with this OS.
With regards to the TAB Active 2 - I can only go by the specifications I can find on the internet, in this case it does meet the minimum requirements we have, but I'd always like to see the CPU a little higher for tablets/ larger screen devices, especially if you are loading multiple applications.
Catalyst needs a strong CPU because it is using software to do all of the work a dedicated GNSS chip would normally do. In practice this means Catalyst is consuming a digital signal sampled many millions of times per second, a typical UAV control application processes sensor data sampled a few hundred times per second...
I've checked with the team and we haven't tested this specific Samsung tablet internally, but If you are concerned with performance, I would recommend you open up a case with our support team by submitting the log files following the instructions here. This will give us the detailed spec's of your tablet as well as a lot of other useful information related to Catalyst and the loading. We can then determine whats going on and offer advice
Please add as much contextual detail as you can to the email so the support team are able to understand what to look for.
I hope this extra detail helps