Delays are noticed from the time a button is pressed to when music is heard playing or changing.

-The keypad wakes up, joins the network and sends a broadcast all within less than one second.  Sometimes it takes a few more seconds for Sonos to queue up music or changing streaming services and buffer.  

-To check if the Sonos system is taking time to buffer, open the Sonos App, navigate to the Sonos device page your keypad is paired with and press the Volume Up and Down buttons on your Keypad.  If you see a quick response in a change of the volume slider on the App screen, your keypad is working correctly and further delays can be attributed to general music buffering.  

-If there is a significant delay from button press to feedback on the Sonos App screen, re-configure your keypad or and then check you home's network.