Does this error message keep showing up? This is a warning that replication is starting to fall behind the workload. If you’re committing very large transactions this is expected - replication can fall behind when the workload has burst writes. As long as the error message doesn’t persistently show up (like every 4 seconds, and never stops), and the number of entries is decreasing, this is not cause for concern - in bursty workloads this is expected.