Do curls last longer if you do them at high temperatures?

Hellooo I received a Remington curling iron as a New Year's gift. It's my very first one, and I have absolutely no experience with them. Over the past few days, I've been experimenting with curls at 150°C. However, they were gone after two hours. But if I go up to 175°C or 225°C, for example,…