Grafana posibilities

Hi guys, I am new with grafana, and I would like to know some possibilities here.

  1. Can I manage up to 100 users?

  2. Is there some Limit of data? Can I, for example, visualize and work with the data for 2000 data sources? Show them for 1 year?

  3. How fast is it possible to load this data?

Thank you.