Update server.js

server.js

@@ -96,7 +96,7 @@ app.post('/render', async (req, res) => {
                     ]
                 },
                 // Use all available cores (or set specific number)
-                concurrency: 4,
+                concurrency: 2,
                 disallowParallelEncoding: false,
                 onProgress: ({ progress }) => {
                     const percent = Math.round(progress * 100);