Help newbie pls. SONOFF Snzb-02d

I started to add my homeassistant some zigbee devices. I have SONOFF dongle plus mg24 on my mini PC USB port. I dont have another zigbee hub or no other kind of hubs. I added my new SONOFF snzb-02d thermometer to HA. But i dont like refresh rate of sensors. Sometimes 20min, some times 1 hour to refresh. I want to get sensor updates about every 5 min. How can i achieve this. Do i need another device? Are these wrong instruments for this situation?

Take a look in this thread Frequency report Sonoff SNZB-02D · Issue #19626 · Koenkk/zigbee2mqtt · GitHub