Why does World of Warcraft freeze at 50% loading in Valdrakken?

Entering Valdrakken was a nightmare; the loading screen would hang at 50% for ten seconds, which is absolute torture in an MMO. I first tried increasing virtual memory in the system, but the loading speed barely changed, making the attempt feel completely pointless. I accessed the GamePP NVMe Queue Depth Configuration, bumped the queue depth from 1024 to 2048, and enabled forced write cache flushing. CrystalDiskMark showed 4K random reads improving to 50-58MB/s, while HWMonitor confirmed the drive stabilized at 40-48℃ and fan speeds hit 1400-1600RPM per GamePP Performance Tool.