Eliminating I/O Blocking
Every time the game auto-saved, the screen froze for 0.5s; HWiNFO showed random write latency spiking from 2ms to 45-60ms. I tried moving the save path to another partition, but since the controller was the same, the stutter remained, proving it was a queue issue. I used GamePP NVMe Queue Depth Configuration to increase the write queue depth from 32 to 64. CrystalDiskMark showed 4K write latency converged to 12-18ms, and HWiNFO confirmed SSD temperature at 40-46℃, making saves seamless.