What is "Registering network metrics listener"?

For the past two or three days, my game occasionally takes longer than normal to load.
In the editor, I haven’t tried the cooked game yet…
But the normal thing is to load very quickly (five or ten seconds more o less).

As I said, these last few days it sometimes takes a little longer than normal (between 30 and 60 seconds).

I think it’s something related to metrics. (I have no idea what it is).
Because in the log I see this every time it happens.
I don’t remember seeing this before.

Does anyone know what it is?
Should I be worried about this?
Can it be avoided in any way?
Thank you so much!!

This is the message log!! (UE5.4.4)

LogPushModel: PushModel HandleCreation is now enabled
LogNet: InitBase PendingNetDriver (NetDriverDefinition GameNetDriver) using replication model Generic
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric NumConnections
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric Connections
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric GatherPrioritizeTimeMS
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric InPacketsClientAvg
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric InPacketsClientMax
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric NumberOfActiveActors
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric NumberOfFullyDormantActors
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric NumClientUpdateLevelVisibility
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric NumOpenChannels
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric NumReplicateActorCallsPerConAvg
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric NumSkippedObjectEmptyUpdates
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric NumTickingChannels
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric OutKBytes
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric OutNetGUIDKBytesSec
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric OutPacketsClientAvg
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric OutPacketsClientMax
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric ReplicateActorTimeMS
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric SatConnections
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric ServerReplicateActorTimeMS
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric SharedSerializationPropertyHit
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric SharedSerializationPropertyMiss
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric SharedSerializationRPCHit
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric SharedSerializationRPCMiss
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric OutgoingReliableMessageQueueMaxSize
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsCSV_Replication for metric IncomingReliableMessageQueueMaxSize
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric NumConnections
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric AvgPing
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InBunches
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InPackets
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InPacketsClientPerSecondAvg
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InPacketsClientPerSecondMax
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InPacketsClientPerSecondMin
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InPacketsLost
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InRate
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InRateClientAvg
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InRateClientMax
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric InRateClientMin
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric MaxPacketOverhead
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric MaxPing
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric MinPing
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric NumClients
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric Connections
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutBunches
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutPackets
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutPacketsClientPerSecondAvg
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutPacketsClientPerSecondMax
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutPacketsClientPerSecondMin
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutPacketsLost
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutRate
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutRateClientAvg
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutRateClientMax
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric OutRateClientMin
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric PingBucketInt0
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric PingBucketInt1
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric PingBucketInt2
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric PingBucketInt3
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric PingBucketInt4
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric PingBucketInt5
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric PingBucketInt6
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric PingBucketInt7
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric ClosedConnectionsDueToReliableBufferOverflow
LogNet: Registering network metrics listener /Script/Engine.NetworkMetricsPerfCounters for metric AddedConnections
LogInit: WinSock: Socket queue. Rx: 32768 (config 32768) Tx: 32768 (config 32768)