Not the game, even my air cooled old 8GB, Nividia 9600 computer never overheated with DAI. My liquid cooled i&, 32 GB tops out at 70 with the game.
What I do may be the difference.
I open the case and dust inside my computers once a month.
Shut down and clean vents and fans with SD alcohol once every 4 months.
Inspect the thermal past twice a year, and replace it if needed.
Might be a bit of overkill but, a clean rig is a cool rig, and a cool rig is a happy rig.
I'd give dusting and cleaning a try, and check the thermal paste. Might be that's all it is.