**Describe the situation**
```
$ ./clickhouse-21.3.3 client --query "SELECT * FROM system.numbers_mt FORMAT Native" | pv > /dev/null
^C,1GiB 0:00:45 [ 710MiB/s] [                                                                                                                                                                                               <=>                      ]

$ ./clickhouse-21.3.3 client --compress 0 --query "SELECT * FROM system.numbers_mt FORMAT Native" | pv > /dev/null
^C,2GiB 0:00:12 [1,48GiB/s] [                                                   <=>                                                                                                                                                                  ]
```

const Poco::Util::AbstractConfiguration & config,
        const String & config_prefix,
        const String & cluster_,
        const String & cluster_secret_,
        UInt32 shard_index_,
        UInt32 replica_index_)
    : cluster(cluster_)
    , cluster_secret(cluster_secret_)
    , shard_index(shard_index_)
    , replica_index(replica_index_)
{
    host_name = config.getString(config_prefix + ".host");
    port = static_cast<UInt16>(config.getInt(config_prefix + ".port"));
    if (config.has(config_prefix + ".user"))
        user_specified = true;
    user = config.getString(config_prefix + ".user", "default");
    password = config.getString(config_prefix + ".password", "");
    default_database = config.getString(config_prefix + ".default_database", "");
    secure = config.getBool(config_prefix + ".secure", false) ? Protocol::Secure::Enable : Protocol::Secure::Disable;
    compression = config.getBool(config_prefix + ".compression", true) ? Protocol::Compression::Enable : Protocol::Compression::Disable;
    priority = config.getInt(config_prefix + ".priority", 1);
    const char * port_type = secure == Protocol::Secure::Enable ? "tcp_port_secure" : "tcp_port";
    is_local = isLocal(config.getInt(port_type, 0));
}
Cluster::Address::Address(