Having recently updated to 1Password 7 Version 7.7.BETA-1 (70700001), I've noted that the user-interface seems noticeably "slower", not only in terms of the responsiveness to actions while editing, but also in rendering the results once you hit "Save".
I've already rebooted and restarted 1Password to make sure it's wasn't my system, nothing else is running, and I'm got quite capable hardware (MBP 16", 2.4 GHz 8-Core Intel Core i9, 32GB memory), so I'm quite sure it's not my fault.
If I had to guess, looking from the outside, the "Save" issue might be that the re-fresh of the data is not occuring until the sync with the server is complete and some signal is coming back, which I get, but it's a good 0.5-1.0 second before that happens and it's quite disconcerting to not know if the changes I made were actually saved or lost. If that client-server delay is the issue, then someone with a slower internet connection would have an even larger delay than I'm getting.
Regardless, this seems like a change for the worse since previously all changes were rendered locally immediately.
1Password Version: Version 7.7.BETA-1 (70700001)
Extension Version: Not Provided
OS Version: OSX 10.15.6
Sync Type: Not Provided