It takes time and patience also you need you make your own SOCKS5 proxy list as the grabber as said doesn't work. There are many ways to do it. Here I had a custom list of 350. Clearly you need a bigger list, at least 5k working adresses to make it reach 1.5k.
https://i.imgur.com/gchVE7X.png - That was yesterday
Today I tried with 484 but it's actually only 200 as they were duplicates with different ports so it only generated 20-30 stable views. So I'd say you get 1/10 of what you have on your list.
Edit:
So running multiple instances does multiply the result. Socks4 work fine as well from what I see. Ran one with 5 and one with 4 without any issues.