The ‘delay’ you mention, without specifics, is most often due to a network issue, either wifi interference or possibly a duplicate IP address issue. But we can only assume.
I would recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it.or even post more specifics, so this community can respond. Obviously, we can’t address the clumsiness you are experiencing, since no one in this forum designed the current app. And perhaps more unfortunately, the people who did are extremely unlikely to see anything beyond a summary of the posts here.
There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.
When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.