What does the "Quick Ship" tagabove the laptop refer to?

I am planning to buy a custom Lenovo Pro 5, and it shows "Ships by 21 may" ( just like other custom laptops ). But there's also a "Quick Ship" tag. What does it mean?

Laptop in question: https://www.lenovo.com/in/en/p/laptops/legion-laptops/legion-pro-series/legion-pro-5-gen-10-16-inch-amd/83ltcto1wwin2