What network is XRP on?

Could you please clarify for me which network does XRP operate on? I'm trying to understand the underlying technology and infrastructure that supports this cryptocurrency. Is it built on a specific blockchain or does it utilize a different type of distributed ledger technology? Additionally, I'm curious about the performance characteristics of the network, such as transaction speed and scalability. Could you provide any insights into these aspects as well? Thank you for your assistance in helping me better understand the network behind XRP.