diff --git a/machines/pendulum/configuration.nix b/machines/pendulum/configuration.nix
index d177f52..1bbefb8 100644
--- a/machines/pendulum/configuration.nix
+++ b/machines/pendulum/configuration.nix
@@ -57,8 +57,16 @@
   };
   # State version
   system.stateVersion = "23.05";
-  # Postgres version
-  services.postgresql.package = pkgs.postgresql_15;
+  # Postgres version and tuning
+  services.postgresql = {
+    package = pkgs.postgresql_15;
+    settings = {
+      shared_buffers = "4GB";
+      effective_cache_size = "8GB";
+      work_mem = "64MB";
+      maintenance_work_mem = "128MB";
+    };
+  };
   # Configure bootloader
   boot.loader.grub.enable = true;
   boot.loader.grub.device = "/dev/sda";