Why does my Zhitai TiPro9000 2TB write speed tank when expanding my city in Manor Lords, causing heavy lag?

That feeling of the loading bar hanging at 90% is a nightmare when building large estates, and I eventually realized SLC cache overflow was the culprit. The TiPro9000 handles massive building model data well until the dynamic cache fills up, at which point write speeds plummet from 7000MB/s to a pathetic 1100-1300MB/s. I first tried using third-party software for a forced defrag, but that was a mistake—system response time jumped to 80ms, and it felt even worse. I then grabbed the latest official firmware and manually recalibrated the 4K partition alignment, setting the write buffer size to 8GB. In AIDA64 storage tests, random write speeds climbed from 35-48MB/s to 72-85MB/s, cutting scene transition times by 30%. Interestingly, the drive wasn't even detected in BIOS immediately after the update, until I reseated the M.2 slot and cleared the CMOS. It now runs smoothly between 46-54℃ with the heatsink doing a great job. Performance benchmarks confirm the instruction set is synced, and memory temps stay between 58-63℃.