Under standard atmospheric pressure, the maximum temperature is 100 degrees
But if the pressure increases, the boiling point of water will also increase. The simplest example is a pressure cooker, which increases the pressure inside the water. Therefore, the water temperature will become very high and cooking will be faster.
On the Tibetan plateau, due to low atmospheric pressure, the water temperature is very low (should be lower than the eighty mentioned above (degrees), so it is not easy to cook rice in a pressure cooker.