Why is my Samsung 9100 PRO stuttering in Genshin Impact?
When diving into the dense foliage of Sumeru, I noticed my read latency spiking to 110-140ms, causing these annoying rhythmic micro-stutters that felt like old-school interface conflicts. I was baffled why a top-tier drive would choke, so I tried enabling write caching in Windows, but that was a total bust—my 1% lows actually tanked to 38 FPS. Frustrated, I dove into the BIOS Advanced settings and forced the PCIe link speed to Gen 5 instead of leaving it on Auto, while tweaking the NVMe prefetch parameters. Using HWiNFO, I saw the I/O throughput climb from 6.2-7.8GB/s to a rock steady 9.1-10.5GB/s, and my frame times tightened from 15.8-23.1ms down to 10.2-12.5ms. I actually bricked my boot sequence once by messing with Fast Boot, but after a CMOS reset and re-weighting the bus priority, everything finally clicked. Even though the M.2 area still hits 50-55℃ under heavy load, the responsiveness is night and day. Verified with CrystalDiskMark, the bandwidth is now peaking and frame times are locked at 10.2-12.5ms.
