How to get a list of rooms and increase the number of packets transmitted?

Question

Unity

Good evening everyone. Please help me with Photon Cloud on Unity3D.
1) So I was able to connect and create a room, from another client that connected to the server I want to get a list of rooms using the GetRoomList() method of the PhotonNetwork class, but the array is always empty. What to do?
2) Here in the built-in Unity Network in the project settings Edit-> Project Settings -> Network and in the "NetworkManager" window there is a "Sendrate" function, and as I understand it, it is responsible for the number of packets transmitted in 1 second, but here's how to do it on Photon cloud?