diff --git a/internal/rpc/relation/friend.go b/internal/rpc/relation/friend.go
index 3d29ad337..6b52181b6 100644
--- a/internal/rpc/relation/friend.go
+++ b/internal/rpc/relation/friend.go
@@ -121,7 +121,7 @@ func Start(ctx context.Context, config *Config, client discovery.SvcDiscoveryReg
 		conversationRpcClient: rpcclient.NewConversationRpcClient(client, config.Share.RpcRegisterName.Conversation),
 		config:                config,
 		webhookClient:         webhook.NewWebhookClient(config.WebhooksConfig.URL),
-		queue:                 memamq.NewMemoryQueue(128, 1024*8),
+		queue:                 memamq.NewMemoryQueue(16, 1024*1024),
 	})
 	return nil
 }
diff --git a/pkg/rpcclient/msg.go b/pkg/rpcclient/msg.go
index bfed4c78d..715014800 100644
--- a/pkg/rpcclient/msg.go
+++ b/pkg/rpcclient/msg.go
@@ -269,8 +269,8 @@ func WithUserRpcClient(userRpcClient *UserRpcClient) NotificationSenderOptions {
 }
 
 const (
-	notificationWorkerCount = 2
-	notificationBufferSize  = 200
+	notificationWorkerCount = 16
+	notificationBufferSize  = 1024 * 1024 * 2
 )
 
 func NewNotificationSender(conf *config.Notification, opts ...NotificationSenderOptions) *NotificationSender {