Why does my Samsung 9100 PRO with heatsink throttle and cause loading lag in Hellblade 2?

While pushing through those hyper-detailed environments, I noticed my Samsung 9100 PRO hitting peak speeds of 12000MB/s, but then it would just tank, causing these annoying micro-stutters. Checking HWiNFO, the controller temp shot from 52℃ to 78℃ in seconds, triggering a hard thermal throttle. I tried forcing the PCIe slot to Gen 5 in BIOS, but that actually made the throttling happen more often—totally frustrating. I eventually installed the latest Samsung NVMe drivers, set the 'Turn off hard disk after' option to 0 in Windows Power Plan, and rigged a 40mm fan directly over the heatsink. In AIDA64 disk tests, the wild swings between 6000-12000MB/s smoothed out to a consistent 10500-11200MB/s. I did hit a snag where the drive wasn't recognized after the driver swap, but a chipset update cleared that up. Now it sits comfortably between 58-64℃ with response times around 0.02ms. The read/write curves are finally flat, and the config is saved.