My node has a few things going for it that helped that time. Stable gigabit fiber internet, nvme drive, ryzen 3 pro cpu instead of arm on a raspi, 16gb ram.

I think the Nvme is huge though. The fastest Sata SSD will run 400-500MB per second read and write. A completely average Nvme drive runs 3500MB per second read and write, 7500 is possible for nvme with the best drive and motherboard. That 7x speed multiple looks suspiciously close to the ratio of 12hrs instead of 3-4 days.