MySQL master-Slave Replication latency Issues

Causes of master-slave replication delays:

(1) The main library is too many from the library, causing replication delays
(2) The difference from the library hardware compared to the main library, resulting in replication delay
(3) too many slow SQL statements, resulting in replication latency
(4) Master-slave replication design problem, resulting in replication delay
(5) Network latency between master and slave libraries, resulting in replication delays
(6) Large main library reading and writing pressure, resulting in replication delay

MySQL master-Slave Replication latency Issues