diff --git a/ghost/portal/webpack.config.js b/ghost/portal/webpack.config.js
index c1183b8ca1..70fb647286 100644
--- a/ghost/portal/webpack.config.js
+++ b/ghost/portal/webpack.config.js
@@ -2,6 +2,7 @@ const path = require('path');
 const glob = require('glob');
 
 module.exports = {
+    mode: 'production',
     entry: {
         'bundle.js': glob.sync('build/static/?(js|css)/main.*.?(js|css)').map(f => path.resolve(__dirname, f))
     },
@@ -17,5 +18,10 @@ module.exports = {
             }
         ]
     },
-    plugins: []
+    plugins: [],
+    performance: {
+        hints: false,
+        maxEntrypointSize: 560,
+        maxAssetSize: 5600
+    }
 };
\ No newline at end of file