diff --git a/PLAN_OPTIMISATION_PERFORMANCES.md b/PLAN_OPTIMISATION_PERFORMANCES.md
index 13c92e2..74aeeb2 100644
--- a/PLAN_OPTIMISATION_PERFORMANCES.md
+++ b/PLAN_OPTIMISATION_PERFORMANCES.md
@@ -83,12 +83,13 @@ size: "1000"; // Récupère TOUS les livres d'un coup
   - Garder uniquement le cache SW pour : images, static, navigation
   - Le cache serveur suffit pour les données
 
-- [ ] **2.2 Supprimer les headers HTTP Cache-Control**
+- [x] **2.2 Supprimer les headers HTTP Cache-Control**
 
   - Retirer `Cache-Control` des NextResponse dans les routes API
   - Évite les conflits avec le cache serveur
+  - Note: Conservé pour les images de pages de livres (max-age=31536000)
 
-- [ ] **2.3 Supprimer `revalidate` des routes dynamiques**
+- [x] **2.3 Supprimer `revalidate` des routes dynamiques**
 
   - Routes API = dynamiques, pas besoin d'ISR
   - Le cache serveur suffit
diff --git a/src/app/api/komga/home/route.ts b/src/app/api/komga/home/route.ts
index 862d36c..ce5d085 100644
--- a/src/app/api/komga/home/route.ts
+++ b/src/app/api/komga/home/route.ts
@@ -4,7 +4,6 @@ import { ERROR_CODES } from "@/constants/errorCodes";
 import { AppError } from "@/utils/errors";
 import { getErrorMessage } from "@/utils/errors";
 import logger from "@/lib/logger";
-export const revalidate = 60;
 
 export async function GET() {
   try {
diff --git a/src/app/api/komga/libraries/[libraryId]/series/route.ts b/src/app/api/komga/libraries/[libraryId]/series/route.ts
index d8edad4..3dd7160 100644
--- a/src/app/api/komga/libraries/[libraryId]/series/route.ts
+++ b/src/app/api/komga/libraries/[libraryId]/series/route.ts
@@ -5,7 +5,6 @@ import { AppError } from "@/utils/errors";
 import { getErrorMessage } from "@/utils/errors";
 import type { NextRequest } from "next/server";
 import logger from "@/lib/logger";
-export const revalidate = 60;
 
 const DEFAULT_PAGE_SIZE = 20;
 
@@ -27,14 +26,7 @@ export async function GET(
       LibraryService.getLibrary(libraryId),
     ]);
 
-    return NextResponse.json(
-      { series, library },
-      {
-        headers: {
-          "Cache-Control": "public, s-maxage=60, stale-while-revalidate=120",
-        },
-      }
-    );
+    return NextResponse.json({ series, library });
   } catch (error) {
     logger.error({ err: error }, "API Library Series - Erreur:");
     if (error instanceof AppError) {
diff --git a/src/app/api/komga/series/[seriesId]/books/route.ts b/src/app/api/komga/series/[seriesId]/books/route.ts
index 4a691b5..13b7a61 100644
--- a/src/app/api/komga/series/[seriesId]/books/route.ts
+++ b/src/app/api/komga/series/[seriesId]/books/route.ts
@@ -5,7 +5,6 @@ import { AppError } from "@/utils/errors";
 import { getErrorMessage } from "@/utils/errors";
 import type { NextRequest } from "next/server";
 import logger from "@/lib/logger";
-export const revalidate = 60;
 
 const DEFAULT_PAGE_SIZE = 20;
 
@@ -26,14 +25,7 @@ export async function GET(
       SeriesService.getSeries(seriesId),
     ]);
 
-    return NextResponse.json(
-      { books, series },
-      {
-        headers: {
-          "Cache-Control": "public, s-maxage=60, stale-while-revalidate=120",
-        },
-      }
-    );
+    return NextResponse.json({ books, series });
   } catch (error) {
     logger.error({ err: error }, "API Series Books - Erreur:");
     if (error instanceof AppError) {
diff --git a/src/app/api/komga/series/[seriesId]/route.ts b/src/app/api/komga/series/[seriesId]/route.ts
index 4211f58..2202096 100644
--- a/src/app/api/komga/series/[seriesId]/route.ts
+++ b/src/app/api/komga/series/[seriesId]/route.ts
@@ -6,7 +6,6 @@ import type { KomgaSeries } from "@/types/komga";
 import { getErrorMessage } from "@/utils/errors";
 import type { NextRequest } from "next/server";
 import logger from "@/lib/logger";
-export const revalidate = 60;
 
 export async function GET(
   request: NextRequest,
@@ -16,11 +15,7 @@ export async function GET(
     const seriesId: string = (await params).seriesId;
 
     const series: KomgaSeries = await SeriesService.getSeries(seriesId);
-    return NextResponse.json(series, {
-      headers: {
-        "Cache-Control": "public, s-maxage=60, stale-while-revalidate=120",
-      },
-    });
+    return NextResponse.json(series);
   } catch (error) {
     logger.error({ err: error }, "API Series - Erreur:");
     if (error instanceof AppError) {