diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 3080d4aa53..790799c164 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -463,9 +463,9 @@ static void InitPostmasterDeathWatchHandle(void);
 /*
  * Slot sync worker allowed to start up?
  *
- * If we are on a hot standby, slot sync parameter is enabled, and it is
- * the first time of worker's launch, or enough time has passed since the
- * worker was launched last, then it is allowed to be started.
+ * We allow to start the slot sync worker when we are on a hot standby,
+ * sync_replication_slots is enabled, and it is the first time of worker's
+ * launch, or enough time has passed since the worker was launched last.
  */
 #define SlotSyncWorkerAllowed()	\
 	(sync_replication_slots && pmState == PM_HOT_STANDBY && \
diff --git a/src/backend/replication/logical/slotsync.c b/src/backend/replication/logical/slotsync.c
index 40ab87bce1..0e0f3cdf76 100644
--- a/src/backend/replication/logical/slotsync.c
+++ b/src/backend/replication/logical/slotsync.c
@@ -1052,9 +1052,9 @@ ensure_valid_slotsync_params(void)
 /*
  * Re-read the config file.
  *
- * If any of the slot sync GUCs have changed, exit the worker and
- * let it get restarted by the postmaster. The worker to be exited for
- * restart purpose only if the caller passed restart as true.
+ * Exit if any of the slot sync GUCs have changed. The postmaster will
+ * restart it. The worker to be exited for restart purpose only if the
+ * caller passed restart as true.
  */
 static void
 slotsync_reread_config(bool restart)
@@ -1295,9 +1295,9 @@ ReplSlotSyncWorkerMain(int argc, char *argv[])
 	dbname = walrcv_get_dbname_from_conninfo(PrimaryConnInfo);
 
 	/*
-	 * Connect to the database specified by user in primary_conninfo. We need
-	 * a database connection for walrcv_exec to work. Please see comments atop
-	 * libpqrcv_exec.
+	 * Connect to the database specified by the user in primary_conninfo. We
+	 * need a database connection for walrcv_exec to work which we use to fetch
+	 * slot information from the remote node. See comments atop libpqrcv_exec.
 	 */
 	InitPostgres(dbname, InvalidOid, NULL, InvalidOid, 0, NULL);
 
@@ -1310,12 +1310,11 @@ ReplSlotSyncWorkerMain(int argc, char *argv[])
 		appendStringInfo(&app_name, "%s", "slotsyncworker");
 
 	/*
-	 * Establish the connection to the primary server for slots
+	 * Establish the connection to the primary server for slot
 	 * synchronization.
 	 */
 	wrconn = walrcv_connect(PrimaryConnInfo, false, false, false,
-							app_name.data,
-							&err);
+							app_name.data, &err);
 	pfree(app_name.data);
 
 	if (!wrconn)
@@ -1332,7 +1331,7 @@ ReplSlotSyncWorkerMain(int argc, char *argv[])
 	 */
 	ensure_valid_remote_info(wrconn);
 
-	/* Main wait loop */
+	/* Main loop to synchronize slots */
 	for (;;)
 	{
 		bool		some_slot_updated = false;
@@ -1345,7 +1344,7 @@ ReplSlotSyncWorkerMain(int argc, char *argv[])
 	}
 
 	/*
-	 * The slot sync worker can not get here because it will only stop when it
+	 * The slot sync worker can't get here because it will only stop when it
 	 * receives a SIGINT from the startup process, or when there is an error.
 	 */
 	Assert(false);