diff --git a/aio/tools/prerender/constants.js b/aio/tools/prerender/constants.js
index e98996c62f..a37d307baa 100644
--- a/aio/tools/prerender/constants.js
+++ b/aio/tools/prerender/constants.js
@@ -4,7 +4,7 @@
 const path = require('path');
 
 // Constants
-const BROWSER_INSTANCES = 7;
+const BROWSER_INSTANCES = 3;
 
 const PORT = 4201;
 const BASE_URL = `http://localhost:${PORT}`;