Is it possible to measure temperature more often?

We have temperature sensors that measure and transmits the temperature either every 15-minute or every 5.5-minute.

The temperature often changes slowly

Please note that most real-world temperature changes are very slow compared to our default 15/5.5-minutes reporting interval.

To take a concrete example, an air conditioner that has been configured to a specific temperature will take one hour or more to actually cool down, or heat up, a room to that temperature, depending on the temperature change. During this time, you will have multiple data points to monitor the change in temperature.