Big latency in WIFI with Amp 2.1

when using Bluetooth, the actions on the phone app are immediately applied (eg: track change, play, pause).
But when switching in WIFI there is around 4 seconds of delay between the command and the effect. Really annoying. Is it normal?
I have a single board, no multiroom.

You used airplay? And the delay is true if so…

I use an iPhone and I didn’t find how to use Wifi without activating airplay. I use Qobuz App. Somebody knows?

You could use 4STREAM app to play QOBUZ streams directly, or use Spotify Connect to push playlist.

Thanks a lot: I used 4STREAM App and there is no lag in Wifi.