Affiliate reports

Hello, re Top Referrers in wp-admin/users.php?page=affiliateearnings

Does this mean that every affiliate can view which other affiliates did the best at referring business to my site? What if I don't want my affiliates to know the volume that other affiliates are doing?

Or does this mean that there is a multi tier referral system. And how does commission work for that?

Where do I control/ change the delay on affiliate payouts?