How to fix Fanxiang S910Max 2TB lag in Fortnite?
In the middle of a frantic build fight, the game would just freeze for about 0.3 seconds—it totally ruins your building rhythm. The S910Max has great random reads, but under extreme load, the I/O request queue was hitting lag spikes of 25 - 40ms. I tried the 'Game Mode' in the drivers first, and while CPU usage dipped, the I/O blocking was still there, which made me realize I needed a deeper fix. I installed the latest NVMe drivers, switched the Windows disk policy to 'High Performance', and disabled the indexing service. In RivaTuner, the frame time variance shrunk from 18 - 48ms down to 9 - 13ms, and the freezing stopped. I did run into an issue where searching for files became sluggish after disabling indexing, but adding the game directory to the exclusion list solved it. Temps are stable at 45 - 55℃. Performance tools confirm the I/O block is gone; the hardware is finally performing as advertised.
