Is partition alignment the cause of the random read stutters on my WD Black SN850 1TB when loading space station scenes in Dead Space?

Every time I entered those creepy corridors, the screen would have these tiny, jarring twitches that were absolutely lethal during stealth sections. After analyzing the drive, I found that since the WD SN850 1TB was over 85% full, the random read response time spiked from 0.5ms to a terrible 15-30ms—a classic sign of file fragmentation and bad partition alignment. I tried running the built-in Windows defrag, but that did nothing but add unnecessary wear to the SSD, which was a total mistake. I used a professional tool to recalibrate the 4K partition alignment and wiped about 15GB of system junk cache. RTSS showed the frame time jitter (16-42ms) tighten up to a stable 16-18ms, and the loading became way smoother. I actually accidentally wiped some data during the re-partitioning process, but a backup save me. Drive temps stayed between 42-50℃, and the heatsink did its job. After 5 hours of testing, the stutters are completely gone.