diff --git a/netlify.toml b/netlify.toml
index b55707ebb..948b3748f 100644
--- a/netlify.toml
+++ b/netlify.toml
@@ -7,3 +7,29 @@
 
 [functions]
   directory = "netlify/functions"
+
+# Cache headers for static assets
+[[headers]]
+  for = "/fonts/*"
+  [headers.values]
+    Cache-Control = "public, max-age=31536000, immutable"
+
+[[headers]]
+  for = "/logos/*"
+  [headers.values]
+    Cache-Control = "public, max-age=31536000, immutable"
+
+[[headers]]
+  for = "/assets/*.js"
+  [headers.values]
+    Cache-Control = "public, max-age=31536000, immutable"
+
+[[headers]]
+  for = "/assets/*.css"
+  [headers.values]
+    Cache-Control = "public, max-age=31536000, immutable"
+
+[[headers]]
+  for = "/*.woff2"
+  [headers.values]
+    Cache-Control = "public, max-age=31536000, immutable"
diff --git a/src/components/ShowcaseCard.tsx b/src/components/ShowcaseCard.tsx
index 6fd3a58cc..a557dbba6 100644
--- a/src/components/ShowcaseCard.tsx
+++ b/src/components/ShowcaseCard.tsx
@@ -46,6 +46,7 @@ export function ShowcaseCard({
           <img
             src={showcase.screenshotUrl}
             alt={showcase.name}
+            loading="lazy"
             className="w-full h-full object-cover group-hover:scale-105 transition-transform duration-300"
           />
           {/* Logo overlay */}
@@ -54,6 +55,7 @@ export function ShowcaseCard({
               <img
                 src={showcase.logoUrl}
                 alt=""
+                loading="lazy"
                 className="w-full h-full object-cover"
               />
             </div>
diff --git a/src/components/TrustedByMarquee.tsx b/src/components/TrustedByMarquee.tsx
index e3fa602c2..b1dfacf62 100644
--- a/src/components/TrustedByMarquee.tsx
+++ b/src/components/TrustedByMarquee.tsx
@@ -53,6 +53,7 @@ export function TrustedByMarquee({
                 key={i}
                 src={logoSrc}
                 alt={brand}
+                loading="lazy"
                 className="max-w-24 max-h-14 w-auto h-auto object-contain opacity-50 grayscale hover:opacity-100 transition-all duration-200 dark:invert dark:opacity-70 shrink-0"
               />
             ) : (
diff --git a/src/routes/admin/banners.$id.tsx b/src/routes/admin/banners.$id.tsx
index 4857f1682..cee381463 100644
--- a/src/routes/admin/banners.$id.tsx
+++ b/src/routes/admin/banners.$id.tsx
@@ -1,11 +1,17 @@
 import { createFileRoute, useNavigate } from '@tanstack/react-router'
 import { useQuery } from '@tanstack/react-query'
-import { BannerEditor } from '~/components/admin/BannerEditor'
+import { lazy, Suspense } from 'react'
 import { getBanner, type BannerWithMeta } from '~/utils/banner.functions'
 import { useCapabilities } from '~/hooks/useCapabilities'
 import { useCurrentUserQuery } from '~/hooks/useCurrentUser'
 import * as v from 'valibot'
 
+const BannerEditor = lazy(() =>
+  import('~/components/admin/BannerEditor').then((m) => ({
+    default: m.BannerEditor,
+  })),
+)
+
 export const Route = createFileRoute('/admin/banners/$id')({
   component: BannerEditorPage,
   validateSearch: (search) => v.parse(v.object({}), search),
@@ -75,11 +81,19 @@ function BannerEditorPage() {
   return (
     <div className="min-h-screen p-8">
       <div className="max-w-6xl mx-auto">
-        <BannerEditor
-          banner={isNew ? null : (bannerQuery.data as BannerWithMeta)}
-          onSave={() => navigate({ to: '/admin/banners' })}
-          onCancel={() => navigate({ to: '/admin/banners' })}
-        />
+        <Suspense
+          fallback={
+            <div className="flex items-center justify-center p-8">
+              <div>Loading editor...</div>
+            </div>
+          }
+        >
+          <BannerEditor
+            banner={isNew ? null : (bannerQuery.data as BannerWithMeta)}
+            onSave={() => navigate({ to: '/admin/banners' })}
+            onCancel={() => navigate({ to: '/admin/banners' })}
+          />
+        </Suspense>
       </div>
     </div>
   )
diff --git a/src/routes/admin/feed.$id.tsx b/src/routes/admin/feed.$id.tsx
index 5b62ddd2b..ac25babd8 100644
--- a/src/routes/admin/feed.$id.tsx
+++ b/src/routes/admin/feed.$id.tsx
@@ -1,11 +1,18 @@
 import { createFileRoute, useNavigate } from '@tanstack/react-router'
 import { useQuery } from '@tanstack/react-query'
-import { FeedEntryEditor } from '~/components/admin/FeedEntryEditor'
+import { lazy, Suspense } from 'react'
 import type { FeedEntry } from '~/components/FeedEntry'
 import { useCapabilities } from '~/hooks/useCapabilities'
 import { useCurrentUserQuery } from '~/hooks/useCurrentUser'
 import { getFeedEntryQueryOptions } from '~/queries/feed'
 import * as v from 'valibot'
+
+const FeedEntryEditor = lazy(() =>
+  import('~/components/admin/FeedEntryEditor').then((m) => ({
+    default: m.FeedEntryEditor,
+  })),
+)
+
 export const Route = createFileRoute('/admin/feed/$id')({
   component: FeedEditorPage,
   validateSearch: (search) => v.parse(v.object({}), search),
@@ -73,13 +80,23 @@ function FeedEditorPage() {
   return (
     <div className="min-h-screen p-8">
       <div className="max-w-4xl mx-auto">
-        <FeedEntryEditor
-          entry={
-            isNew ? null : ((entryQuery.data as FeedEntry | undefined) ?? null)
+        <Suspense
+          fallback={
+            <div className="flex items-center justify-center p-8">
+              <div>Loading editor...</div>
+            </div>
           }
-          onSave={() => navigate({ to: '/admin/feed' })}
-          onCancel={() => navigate({ to: '/admin/feed' })}
-        />
+        >
+          <FeedEntryEditor
+            entry={
+              isNew
+                ? null
+                : ((entryQuery.data as FeedEntry | undefined) ?? null)
+            }
+            onSave={() => navigate({ to: '/admin/feed' })}
+            onCancel={() => navigate({ to: '/admin/feed' })}
+          />
+        </Suspense>
       </div>
     </div>
   )
diff --git a/vite.config.ts b/vite.config.ts
index f64cbee54..0dddc6a75 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -37,6 +37,24 @@ export default defineConfig({
             ) {
               return 'search'
             }
+            // Syntax highlighting (lazy-loaded via mermaid/shiki)
+            if (id.includes('shiki') || id.includes('mermaid')) {
+              return 'syntax-highlight'
+            }
+            // Radix UI components (used throughout)
+            if (id.includes('@radix-ui/')) {
+              return 'radix-ui'
+            }
+            // Markdown processing (unified/remark/rehype)
+            if (
+              id.includes('unified') ||
+              id.includes('remark') ||
+              id.includes('rehype') ||
+              id.includes('hast-') ||
+              id.includes('mdast-')
+            ) {
+              return 'markdown-processing'
+            }
             // Charting deps (only loaded on stats/admin pages)
             if (
               id.includes('@observablehq/plot') ||