Hey @lftoma 
Unfortunately it’s not documented in READMEs or such, but I just checked through the source and what you’re seeing is actually the default page size (50) and just page 1. Pagination is built in to Netlify Identity if you need it.
You can either pass a page number parameter ?page=2 or just request a bigger page size ?per_page=100. Page size can get pretty huge if you need it, but obviously that has performance implications on both ends, so it’s up to you there!
Hope that helps 
–
Jon