There is no specific number of seeds needed for a torrent to have great download speed. The download speed of a torrent depends on various factors, including the upload speed of the seeds, the number of peers, and the size of the file being downloaded. Having more seeds can potentially increase the download speed, but it ultimately depends on the upload speed of those seeds. Additionally, the quality of the seeds and their connection speed can also affect the download speed. The proper torrenting practice requires you to seed your files until the upload to download ratio is at least 1.00.
Well…At least that’s something you can test out. I think 10-20 regular people seeding with decent speed should be more than enough for anyone in the world to have fast downloading speed, even if they won’t seed after downloading…which they should to be a good citizen and help the others! 
P.S. You have torrent links even now btw, seems to work just fine - it’s just a waste to spread them in different links in my view, instead of one that’s seeded by everyone