Your PRO collects performance royalties in its home territory. While they say they are able to collect internationally, they do so through reciprocal deals with foreign PROs which often result in delayed registrations (if the songs get registered at all) and delayed and incomplete royalty statements from foreign territories. We register your works directly with PROs around the world, in order to collect your royalties directly from the territories in which they were generated, which gets you paid more quickly and with more detailed royalty statements.
In addition, your PRO does not collect mechanical royalties generated from sales/streams. We are affiliated with mechanical collection societies and some digital services themselves in order to collect your mechanical royalties globally.