Seconds behind the master is getting increased how to reduced that. since i haveupdated my salve and started back the replication [on hold]

MariaDB [(none)]> show slave status \G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: db.trackcampaigns.com
                  Master_User: newreplslave
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.002019
          Read_Master_Log_Pos: 961081622
               Relay_Log_File: 560384-db2-relay-bin.000175
                Relay_Log_Pos: 488635176
        Relay_Master_Log_File: mysql-bin.001889
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: email_sent_status,email_sent_status_ht
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 488634889
              Relay_Log_Space: 140547705276
              Until_Condition: None
               Until_Log_File: 
                Until_Log_Pos: 0
           Master_SSL_Allowed: Yes
           Master_SSL_CA_File: /mysqlsslcertificate1/ca-cert.pem
           Master_SSL_CA_Path: 
              Master_SSL_Cert: /mysqlsslcertificate1/client-cert.pem
            Master_SSL_Cipher: 
               Master_SSL_Key: /mysqlsslcertificate1/client-key.pem
        Seconds_Behind_Master: 160633
Master_SSL_Verify_Server_Cert: Yes
                Last_IO_Errno: 0
                Last_IO_Error: 
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 111
               Master_SSL_Crl: /mysqlsslcertificate1/ca-cert.pem
           Master_SSL_Crlpath: 
                   Using_Gtid: No
                  Gtid_IO_Pos: