diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f1c976..156fc50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## 🚀 Features
 
+- Optimise postgres config
 - Cardano's ipc socket file is now stored in a docker volume so when stale can be recreated on all OSes.
 - `cardano-cli.sh`, `midnight-node.sh` and `midnight-shell.sh` execute within the running container.
 - Switch networks by altering CFG_PRESET only
diff --git a/compose-partner-chains.yml b/compose-partner-chains.yml
index 4b73f4b..b99ccaa 100644
--- a/compose-partner-chains.yml
+++ b/compose-partner-chains.yml
@@ -44,6 +44,8 @@ services:
       - POSTGRES_USER=${POSTGRES_USER}
     volumes:
       - postgres-data:/var/lib/postgresql/data
+      - ./postgresql.conf:/etc/postgresql.conf
+    command: postgres -c config_file=/etc/postgresql.conf -c listen_addresses='*'
     ports:
       - "${POSTGRES_PORT}:${POSTGRES_PORT}"
     healthcheck:
diff --git a/postgresql.conf b/postgresql.conf
new file mode 100644
index 0000000..22fbcb3
--- /dev/null
+++ b/postgresql.conf
@@ -0,0 +1,24 @@
+# Tuned from https://pgtune.leopard.in.ua/?dbVersion=15&osType=linux&dbType=oltp&cpuNum=1&totalMemory=1&totalMemoryUnit=GB&connectionNum=20&hdType=ssd
+# (Please regenerate when altering postgres versions.)
+#
+# DB Version: 15
+# OS Type: linux
+# DB Type: oltp
+# Total Memory (RAM): 3 GB
+# CPUs num: 1
+# Connections num: 20
+# Data Storage: ssd
+
+max_connections = 20
+shared_buffers = 768MB
+effective_cache_size = 2304MB
+maintenance_work_mem = 192MB
+checkpoint_completion_target = 0.9
+wal_buffers = 16MB
+default_statistics_target = 100
+random_page_cost = 1.1
+effective_io_concurrency = 200
+work_mem = 28086kB
+huge_pages = off
+min_wal_size = 2GB
+max_wal_size = 8GB