Extreme delays on aqara buttons via Xiaomi Hub

Been experiencing very long delays on my Xiaomi Aqara buttons (~5-6 seconds) for the last year or so. They used to be more or less instantaneous (e.g. a light would react within <1sec).

These days I only have time for HA overhauls during the holidays haha - this issue started last Christmas when I reinstalled HA to catch up to the latest version. I may have updated Xiaomi hub firmware at same time, can’t remember.

Troubleshooting steps so far:

  • Updated HA to latest version (2012.12.6)
  • Updated Xiaomi hub to latest version (1.4.1_176.0220)
  • Restarted everything

Anyone else experiencing this issue? Do I just need to give up and get a Zigbee stick? (If so, what’s the current favourite there - I heard HUSBZB-1 is discontinued?)