My GPU is running very hot during benchmarking and gaming, it reaches up to 75-80 degrees celsius after just a couple of minutes. I have set a custom fan curve with 1:1 ratio. My card is Aorus RTX 2070 Super with three fans, and my case is CMT-510. The card is only two days old. I'm wondering if it's normal for this kind of card or is it because my PC case airflow is bad?