Improve hysteresis with Bot 313 FLOUREON thermostat

I configured a " Bot 313 FLOUREON" thermostat in Home assistant,
but this model has a very high hysteresis of 1 °C if the temperature
it is fixed at 20 °C the thermostat switches off at 21 °C, it is too high, I would like it to switch off at 20.1 °C.
My idea is to lower the hysteresis by setting conditions, I don’t know if it’s possible.
the conditions are: if the thermostat temperature is > the set temperature switch off
and set at set temperature. if the thermostat temperature is < of the set temperature switch on and set
at set temperature.
I have already configured the thermostat, created a switch and a template that captures the set temperature,
I don’t know how to capture the temperature read by the thermostat so I can make the comparison.
I ask you first of all if it is possible, being a newbie beyond this point I would not know how
continue.
Thanks.