perfomance issues fixed

next.config.js

@@ -7,8 +7,10 @@ const nextConfig = {
   },
   swcMinify: true,             // explicit SWC minify
   experimental: {
-    forceSwcTransforms: true  // use SWC only
-  }
+    forceSwcTransforms: true,  // use SWC only
+    modern: true,              // ✅ enable modern build (ES6+ for modern browsers)
+    polyfillsOptimization: true // ✅ remove unnecessary polyfills
+  },
 };
 
 module.exports = nextConfig;

package.json

@@ -33,5 +33,11 @@
   },
   "devDependencies": {
     "sitemap": "^8.0.0"
-  }
+  },
+  "browserslist": [
+    "last 2 Chrome versions",
+    "last 2 Firefox versions",
+    "last 2 Safari versions",
+    "last 2 Edge versions"
+  ]
 }