Temperature Sensor Updates Too Slowly

[kineci]

I've noticed that the temperature from the sensor is not updating quickly enough. When heating, the temperature sensor responds too slowly to changes, which causes the target temperature to be exceeded.

The temperature sensor is reporting data promptly to Home Assistant, but it takes a considerable amount of time before these changes are recognized by Better Thermostat. This issue is illustrated in the attached image. The lower graph uses the same temperature sensor as Better Thermostat, yet different values are being displayed.

Is this a bug, or is there a way to adjust the refresh rate?

Thanks a lot for your help