When a 1C environment becomes slow or unstable, investigation often starts inside the application configuration even though the actual bottleneck may sit elsewhere: Linux server resources, PostgreSQL settings, storage, background jobs, locks, networking or a particular workstation.
I therefore treat a 1C server as a complete production system. The application server, database, backups, logs, upgrades, resource monitoring and client workstations need to be operated as one coherent environment.
This approach starts with measurement: identify where the constraint actually occurs, then change the appropriate layer. Support becomes more predictable, recovery can be tested, and increasing load does not lead to a collection of unrelated tuning changes.