“Max messages per second” is the maximum number of message transmissions from a server in a second. It is the sum of the transmissions to all clients, not to a single client.
“Max message size” is the maximum number of bytes in a message, i.e., the maximum size of data in a single transmission.
STRIX calls a unit of data sent by a single transmission a “message”.
As an example, a calculation of the amount of communication data for synchronization in a room with 50 clients is as follows:
When a client sends a message, the server sends the message to 50 clients, meaning it sends 50 messages total. If each of the 50 clients sends a message, the server receives 50 messages and sends the total of 50 × 50 = 2500 messages. This value multiplied by the number of messages a client sends in a second gives the number of messages from a server in a second. You can estimate the amount of data per second from the server by multiplying it by the data size per message, by using the formula “50 × 50 × (messages per second per client) × (data size of a message)”.
The server configuration parameters in question limit the maximum of these values, so they can effectively cap the amount of data per second.