diff --git a/iOSClient/AppDelegate.swift b/iOSClient/AppDelegate.swift
index 9ea56ebb91..6ea17e7f2d 100644
--- a/iOSClient/AppDelegate.swift
+++ b/iOSClient/AppDelegate.swift
@@ -55,12 +55,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
     var timerErrorNetworking: Timer?
     private var privacyProtectionWindow: UIWindow?
 
-    let downloadQueue = Queuer(name: "downloadQueue", maxConcurrentOperationCount: NCGlobal.shared.maxConcurrentOperationCountDownload, qualityOfService: .default)
-    let downloadThumbnailQueue = Queuer(name: "downloadThumbnailQueue", maxConcurrentOperationCount: 10, qualityOfService: .default)
-    let downloadThumbnailActivityQueue = Queuer(name: "downloadThumbnailActivityQueue", maxConcurrentOperationCount: 10, qualityOfService: .default)
-    let downloadAvatarQueue = Queuer(name: "downloadAvatarQueue", maxConcurrentOperationCount: 10, qualityOfService: .default)
-    let unifiedSearchQueue = Queuer(name: "unifiedSearchQueue", maxConcurrentOperationCount: 1, qualityOfService: .default)
-    let saveLivePhotoQueue = Queuer(name: "saveLivePhotoQueue", maxConcurrentOperationCount: 1, qualityOfService: .default)
     @objc let adjust = AdjustHelper()
 
     var isAppRefresh: Bool = false