diff --git a/defaults/main.yml b/defaults/main.yml
index 541686c..5860352 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,38 +1,55 @@
 ---
 # defaults file for postgres
-postgres_repo: 'https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm'
+postgres_repo: "https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm"
 postgres_version: 13
 postgis_install: true
 postgis_version: 31
 pg_config_listen_addresses: localhost
 pg_config_port: 5432
 pg_config_max_connections: 1024
-pg_config_shared_buffers: 32MB
+pg_config_shared_buffers: 2GB
 pg_config_temp_buffers: 8MB
 pg_config_work_mem: 4MB
 pg_config_max_wal_size: 1GB
-pg_config_min_wal_size: 80MB
+pg_config_min_wal_size: 4G
 pg_config_log_filename: postgresql-%Y-%m-%d_%H%M%S.log
-pg_config_timezone: 'Europe/Rome'
+pg_config_timezone: "Europe/Rome"
+pg_config_row: ""
+# pg_config_row: |
+#   max_connections = 200
+#   effective_cache_size = 6GB
+#   maintenance_work_mem = 512MB
+#   checkpoint_completion_target = 0.9
+#   wal_buffers = 16MB
+#   default_statistics_target = 100
+#   random_page_cost = 1.1
+#   effective_io_concurrency = 200
+#   work_mem = 10485kB
+#   min_wal_size = 1GB
+#   max_wal_size = 4GB
+#   max_worker_processes = 2
+#   max_parallel_workers_per_gather = 1
+#   max_parallel_workers = 2
+#   max_parallel_maintenance_workers = 1
 
 pg_hba_user_options:
-- contype: host
-  users: all
-  source: 127.0.0.1/32
-  databases: all
-  method: md5
-- contype: host
-  users: all
-  source: 192.168.100.10/24
-  databases: all
-  method: md5
-- contype: host
-  users: all
-  source: 192.168.200.1/24
-  databases: all
-  method: md5
-- contype: host
-  users: all
-  source: 192.169.100.1/24
-  databases: all
-  method: md5
\ No newline at end of file
+  - contype: host
+    users: all
+    source: 127.0.0.1/32
+    databases: all
+    method: md5
+  - contype: host
+    users: all
+    source: 192.168.100.10/24
+    databases: all
+    method: md5
+  - contype: host
+    users: all
+    source: 192.168.200.1/24
+    databases: all
+    method: md5
+  - contype: host
+    users: all
+    source: 192.169.100.1/24
+    databases: all
+    method: md5
diff --git a/templates/postgresql.conf.j2 b/templates/postgresql.conf.j2
index afcb90b..4b6033a 100644
--- a/templates/postgresql.conf.j2
+++ b/templates/postgresql.conf.j2
@@ -786,3 +786,4 @@ default_text_search_config = 'pg_catalog.english'
 #------------------------------------------------------------------------------
 
 # Add settings for extensions here
+{{pg_config_row}}
\ No newline at end of file