Yes those are two benefits to optimise network audio that you can do on your Cisco Catalyst switch, but you do need to log into your switch and configure IOS.
Portfast removes spanning tree loop protection on the port which means the port enables quicker like a simple unmanaged switch… but you have no protection from network loops.
IGMP querier initiates from the switch a query of which hosts are in which multicast groups. This helps keep MAC address tables and multicast group statuses current without having to rely on the app issueing a membership broadcast message. This can hugely speed up the Naim app responsiveness on some home network and application setups.
In the above photo the left hand connector is a console port, not an Ethernet port… don’t use that for your lan connections, it won’t work … use one of the numbered switchports or the right hand side uplink ports.
Console ports are only used for out of band management uses… and sometimes for setup… don’t use endless you know what you are doing,