How to fix long loading times in Kuro no Kiseki on ASRock H310CM-HDV?

I smiled bitterly as the loading bar stalled for 8 seconds. I tried setting queue depth to 128, but it had no effect on latency. I used the GamePP NVMe Queue Depth Configuration to increase the depth to 256 and enabled TRIM. CrystalDiskMark confirmed 4K random read speed rising from 50 to 75 MB/s. Load times dropped to 3 seconds. The immersion is back, and I can export my save files without waiting.