Qobuz studio erratic via subscription Volumio 3.324

Running Volumio 3.324 on x86 pc. Qobuz Studio is slow to unresponsive via the subscription version. It finds my library ok but is erratic regarding playback. I have tried reinstalling numerous times, tried LAN and wireless internet connections and tried an installation on an alternative PC but the issue remains. It worked perfectly up until 2 days ago and nothing had been tweaked or adjusted when it became erratic so not sure how to proceed with this.