I don't, but the most important tunables are in the replication docs: https://www.postgresql.org/docs/current/runtime-config-replication.html https://www.postgr

I don't, but the most important tunables are in the replication docs: https://www.postgresql.org/docs/current/runtime-config-replication.html https://www.postgresql.org/docs/current/runtime-config-repli... I'd simply suggest reading this top-to-bottom very carefully, until you understand what each option does. That should in turn help you understand how and where replication impacts the source and the sinks. The docs can be terse, but it's rare for anything to be omitted -- read with care.