diff --git a/chart/environment-values/values.openwifi-qa.single-external-db.yaml b/chart/environment-values/values.openwifi-qa.single-external-db.yaml
index 3721947..9ca795b 100644
--- a/chart/environment-values/values.openwifi-qa.single-external-db.yaml
+++ b/chart/environment-values/values.openwifi-qa.single-external-db.yaml
@@ -65,6 +65,9 @@ postgresql-ha:
         memory: 1024Mi
     initdbScriptsSecret: tip-openwifi-initdb-scripts
   postgresql:
+    parameters:
+      max_connections: 30
+      shared_buffers: 2GB
     replicaCount: 1 # TODO change after tests
     password: password
     postgresPassword: postgres