Its not just Sonos
They are all at it.
Spotify doesn't work on my original ipad - well, I can install the app, but it stops playing music after about 30 seconds. Every few months they release a newer version of their app, each new version makes it run even slower on my iphone 4.
I don't know what on earth they are doing that makes it think for 1 minute+ before even showing my playlists.
If I click a button, the whole thing whirs to a stop for multi second pauses before doing anything.
The app has a filter function for filtering a playlist, it doesn't do anything on my phone - apparently, it is too difficult to filter a list of 1000 items on such limited hardware.
If I go to search for a song, going to the search page, typing in ten characters or so, pressing search, and then queueing the track takes literally minutes.
I know from using it on super recent hardware that the app works perfectly on them - but this is a fucking music app. My first MP3 player was an Archos (FM Recorder), which had an 11 MHz CPU and miniscule memory, it is shocking that this insanely powerful computer cannot play some bloody tunes and put a picture on the screen without using every last resource on the damn thing.
And for this I pay £120 a year..