diff --git a/backend/gestion/db/db_alert.go b/backend/gestion/db/db_alert.go
index 63950898..cee7aec9 100644
--- a/backend/gestion/db/db_alert.go
+++ b/backend/gestion/db/db_alert.go
@@ -27,7 +27,7 @@ func (d *Database) GetAlertPolicy(id int) (models.AlertPolicy, error) {
 
 func (d *Database) GetAllAlerts() ([]models.AlertPolicy, error) {
 	var alerts []models.AlertPolicy
-	if err := d.GDB.Find(&alerts).Error; err != nil {
+	if err := d.GDB.Order("created_at DESC").Limit(500).Find(&alerts).Error; err != nil {
 		return nil, err
 	}
 	return alerts, nil
@@ -65,7 +65,7 @@ func (d *Database) ActivateAlert(id int) error {
 
 func (d *Database) GetActiveAlerts() ([]models.AlertPolicy, error) {
 	var alerts []models.AlertPolicy
-	if err := d.GDB.Where("status = 'true'").Order("created_at DESC").Find(&alerts).Error; err != nil {
+	if err := d.GDB.Where("status = 'true'").Order("created_at DESC").Limit(100).Find(&alerts).Error; err != nil {
 		return nil, err
 	}
 	return alerts, nil
@@ -73,7 +73,7 @@ func (d *Database) GetActiveAlerts() ([]models.AlertPolicy, error) {
 
 func (d *Database) GetAlertsByUsername(username string) ([]models.AlertPolicy, error) {
 	var alerts []models.AlertPolicy
-	if err := d.GDB.Where("username = ?", username).Order("created_at DESC").Find(&alerts).Error; err != nil {
+	if err := d.GDB.Where("username = ?", username).Order("created_at DESC").Limit(200).Find(&alerts).Error; err != nil {
 		return nil, err
 	}
 	return alerts, nil
diff --git a/backend/gestion/db/db_livreur_rating.go b/backend/gestion/db/db_livreur_rating.go
index a44c51ef..1cbfa1ef 100644
--- a/backend/gestion/db/db_livreur_rating.go
+++ b/backend/gestion/db/db_livreur_rating.go
@@ -36,7 +36,7 @@ func (d *Database) GetOrderRating(orderID int) (*LivreurRating, error) {
 func (d *Database) GetLivreurRatings(livreurUsername string) ([]LivreurRating, float64, error) {
 	var ratings []LivreurRating
 	if err := d.GDB.Raw(`
-		SELECT * FROM livreur_ratings WHERE livreur_username = ? ORDER BY created_at DESC
+		SELECT * FROM livreur_ratings WHERE livreur_username = ? ORDER BY created_at DESC LIMIT 200
 	`, livreurUsername).Scan(&ratings).Error; err != nil {
 		return nil, 0, err
 	}
diff --git a/backend/gestion/db/db_media.go b/backend/gestion/db/db_media.go
index 1c2b4b8a..0f2f2292 100644
--- a/backend/gestion/db/db_media.go
+++ b/backend/gestion/db/db_media.go
@@ -174,6 +174,20 @@ func (d *Database) GetMediaByID(mediaID int) (*models.Media, error) {
 	return &media, nil
 }
 
+// GetMediaBatch charge les médias de plusieurs produits en une seule requête.
+func (d *Database) GetMediaBatch(productIDs []int) map[int][]models.Media {
+	result := make(map[int][]models.Media, len(productIDs))
+	if len(productIDs) == 0 {
+		return result
+	}
+	var mediaList []models.Media
+	d.GDB.Raw(`SELECT id, product_id, url, type, key, created_at FROM media WHERE product_id IN ? ORDER BY product_id ASC, id ASC`, productIDs).Scan(&mediaList)
+	for _, m := range mediaList {
+		result[m.ProductID] = append(result[m.ProductID], m)
+	}
+	return result
+}
+
 func (d *Database) GetMediaByProductID(productID int) ([]models.Media, error) {
 	log.Printf("🖼️ [GetMediaByProductID] START - ProductID=%d", productID)
 
diff --git a/backend/gestion/db/db_product.go b/backend/gestion/db/db_product.go
index e8cb11b8..f339b57c 100644
--- a/backend/gestion/db/db_product.go
+++ b/backend/gestion/db/db_product.go
@@ -149,23 +149,22 @@ func (d *Database) GetAllProducts() ([]models.Product, error) {
 		return nil, err
 	}
 
+	productIDs := make([]int, len(products))
+	for i, p := range products {
+		productIDs[i] = p.ID
+	}
+	allPrices := d.GetProductPricesBatch(productIDs)
+	allMedia := d.GetMediaBatch(productIDs)
 	for i := range products {
-		prices, err := d.GetProductPrices(products[i].ID)
-		if err != nil {
-			log.Printf("⚠️ [GetAllProducts] Erreur loading prices for product %d: %v", products[i].ID, err)
-			products[i].Prices = []models.ProductPrice{}
-		} else {
+		if prices, ok := allPrices[products[i].ID]; ok {
 			products[i].Prices = prices
-			log.Printf("✅ [GetAllProducts] Loaded %d prices for product %d", len(prices), products[i].ID)
-		}
-
-		media, err := d.GetMediaByProductID(products[i].ID)
-		if err != nil {
-			log.Printf("⚠️ [GetAllProducts] Erreur loading media for product %d: %v", products[i].ID, err)
-			products[i].Media = []models.Media{}
 		} else {
+			products[i].Prices = []models.ProductPrice{}
+		}
+		if media, ok := allMedia[products[i].ID]; ok {
 			products[i].Media = media
-			log.Printf("✅ [GetAllProducts] Loaded %d media for product %d", len(media), products[i].ID)
+		} else {
+			products[i].Media = []models.Media{}
 		}
 	}
 
@@ -188,14 +187,16 @@ func (d *Database) GetProductsByCategory(category string) ([]models.Product, err
 		return nil, fmt.Errorf("erreur lors de la récupération des produits: %w", err)
 	}
 
+	catProductIDs := make([]int, len(products))
+	for i, p := range products {
+		catProductIDs[i] = p.ID
+	}
+	catPrices := d.GetProductPricesBatch(catProductIDs)
 	for i := range products {
-		prices, err := d.GetProductPrices(products[i].ID)
-		if err != nil {
-			log.Printf("⚠️ [GetProductsByCategory] Erreur loading prices for product %d: %v", products[i].ID, err)
-			products[i].Prices = []models.ProductPrice{}
-		} else {
+		if prices, ok := catPrices[products[i].ID]; ok {
 			products[i].Prices = prices
-			log.Printf("✅ [GetProductsByCategory] Loaded %d prices for product %d", len(prices), products[i].ID)
+		} else {
+			products[i].Prices = []models.ProductPrice{}
 		}
 	}
 
diff --git a/backend/gestion/db/db_product_price.go b/backend/gestion/db/db_product_price.go
index 5643184f..cd92fae8 100644
--- a/backend/gestion/db/db_product_price.go
+++ b/backend/gestion/db/db_product_price.go
@@ -13,6 +13,20 @@ func (d *Database) GetProductPrices(productID int) ([]models.ProductPrice, error
 	return prices, nil
 }
 
+// GetProductPricesBatch charge les prix de plusieurs produits en une seule requête.
+func (d *Database) GetProductPricesBatch(productIDs []int) map[int][]models.ProductPrice {
+	result := make(map[int][]models.ProductPrice, len(productIDs))
+	if len(productIDs) == 0 {
+		return result
+	}
+	var prices []models.ProductPrice
+	d.GDB.Where("product_id IN ?", productIDs).Order("product_id ASC, quantity ASC").Find(&prices)
+	for _, p := range prices {
+		result[p.ProductID] = append(result[p.ProductID], p)
+	}
+	return result
+}
+
 func (d *Database) AddActivePrice(priceID int) error {
 	result := d.GDB.Model(&models.ProductPrice{}).
 		Where("id = ?", priceID).
diff --git a/backend/gestion/db/db_users.go b/backend/gestion/db/db_users.go
index 3675bad8..bbd87475 100644
--- a/backend/gestion/db/db_users.go
+++ b/backend/gestion/db/db_users.go
@@ -15,7 +15,7 @@ func (d *Database) CreateUser(user *models.User) error {
 
 func (d *Database) GetAllUsers() ([]*models.User, error) {
 	var users []*models.User
-	if err := d.GDB.Order("created_at DESC").Find(&users).Error; err != nil {
+	if err := d.GDB.Order("created_at DESC").Limit(500).Find(&users).Error; err != nil {
 		return nil, fmt.Errorf("erreur lors de la récupération des utilisateurs: %w", err)
 	}
 	return users, nil
@@ -23,7 +23,7 @@ func (d *Database) GetAllUsers() ([]*models.User, error) {
 
 func (d *Database) GetAllDeliveryMen() ([]*models.User, error) {
 	var users []*models.User
-	if err := d.GDB.Where("role = ?", "livreur").Find(&users).Error; err != nil {
+	if err := d.GDB.Where("role = ?", "livreur").Limit(100).Find(&users).Error; err != nil {
 		return nil, fmt.Errorf("erreur lors de la récupération des livreurs: %w", err)
 	}
 	return users, nil