perfomance issues fixed

next.config.js

@@ -1,14 +1,16 @@
 /** @type {import('next').NextConfig} */
 const nextConfig = {
-  output: "export",           // keep: needed for next export
+  output: "export",            // keep: needed for next export
   trailingSlash: true,
-    images: {
-    unoptimized: true,        // ✅ needed
+  images: {
+    unoptimized: true,         // ✅ needed
   },
-  swcMinify: true,            // explicit SWC minify
+  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"
+  ]
 }