How to optimize Fanxiang S790 4TB for Battlefield V loading?
The visual rush of a 64-player battle is amazing, but the instant frame drops were absolutely killing my momentum. The controller on the Fanxiang S790 4TB was struggling with massive small-file reads, with the queue depth jumping erratically between 32-64, pushing I/O wait times over 15ms. I tried enabling Windows Game Mode, but that just cleaned up the UI without touching the lag—totally useless. I used a professional tool to lock the NVMe queue depth at 128 and switched the write cache to delayed write mode. In CrystalDiskMark, random reads climbed from 45MB/s to 68-75MB/s, and the combat fluidity improved drastically. I did notice a brief drive detection delay during idle after the lock, which only went away once I forced the High Performance power plan. Temps are stable at 52-58℃, drawing 7-10W. I used a performance profiler to confirm the I/O latency is down. Mode switched.
