This looks to be a driver issue. I’m running an Nvidia RTX 3060Ti and on the first boss of Halls of Infusion, when he did Power Surge, my graphics card got really hot. After power surge it went back down to normal temps. Upon doing some research it looks like the latest drivers from Nvidia are having a lot of issues, so I rolled back to my previous driver, which was from June.
I’ll wait until 10.2 releases before I update again; hopefully Nvidia and AMD have worked out there issues by then.