真诚请教原因， RabbitMQ 增加多消费者导致生产者推送消息阻塞(10s~30s)

RabbitMQ 增加多消费者导致生产者推送消息阻塞(10s~30s) 设备上传数据到系统 A(netty)，系统 A 根据数据类型推送消息到不同的队列，因为设备量增多的原因，之前单消费者开始处理的不及时，就想着多增加个消费者(和之前的消费者代码一样)，然后系统 A 推送消息开始出现卡顿，数据帧应答的很慢，感觉不像是流控的事，管理端看着也没问题 相关代码： 系统 A：

channelRead(ChannelHandlerContext ctx,  Object msg){
    ....
    sendAck(ctx,ack);
    switch (data.getClass().getName()) {
        case "realTimeData":
            RabbitUtil.getInstance().publish(realTimeData);
    }
}

publish(RealTimeData realTimeData){
     .......
     Map<String, Object> header = new HashMap<String, Object>();
     header.put("DataType", "RealTimeData");
     BasicProperties props = new BasicProperties().builder().headers(header).build();
     channel.basicPublish(exchangeName, routeKey_CollectedData, props, CollectedRealTimeDataPackageTransform.toBytes(data));
}

channel init:
    private Channel channel;
    private ConnectionFactory factory = new ConnectionFactory();
    @PostConstruct
    public void init() {
        instance = this;
        factory.setUsername(mqUserName);
        factory.setPassword(mqPassword);
        factory.setHost(mqHost);
        factory.setVirtualHost(mqVirtualHost);
        factory.setPort(mqPort);
      }
     channel = factory.newConnection().createChannel();
}

消费者代码：

    @Autowired
    DataProcessor processor;
    @Autowired
    @Qualifier("threadpool")
    ThreadPoolExecutor threadPool;
@RabbitListener(queues = "${mq.queue.Original.CollectedData}", ackMode = "MANUAL")
 public void process(Message msg, Channel channel) {
        MessageProperties mp = msg.getMessageProperties();
        Map<String, Object> headers = mp.getHeaders();
        String dataType = (String) headers.get("DataType");
 switch (dataType) {
            case "RealTimeData":
                CompletableFuture.runAsync(() -> {
                    try {
                        channel.basicAck(msg.getMessageProperties().getDeliveryTag(), false);
                        CollectedRealTimeData crtd = CollectedRealTimeDataPackageTransform.fromBytes(msg.getBody());
                        processor.process(crtd);
                    } catch (Exception e) {
                        try {
                            channel.basicNack(msg.getMessageProperties().getDeliveryTag(), false, false);
                        } catch (IOException ioException) {
                            ioException.printStackTrace();
                        }
                        e.printStackTrace();
                    }
                }, threadPool);
                break;
        }



 }