ssm下本地文件下载速度慢

我是用的文件流下载的在这要等20-30秒左右才行在IE没这种问题只有谷歌火狐才有（好像是转码的问题），我应该怎么解决，各位大佬帮帮忙！最新代码！
代码如下：

 public void downLoad(int pid, HttpServletResponse response) throws IOException {
        String path = "F:\\upload\\images" + "\\" + productService.getPimage(pid);
        String filename = productService.getPname(pid);
        //1.设置文件ContentType类型，这样设置，会自动判断下载文件类型
        response.setContentType("multipart/form-data");
        //2.设置文件头：最后一个参数是设置下载文件名
        response.setHeader("Content-Disposition", "attachment;fileName="+new String(filename.getBytes("utf-8"), "ISO8859-1"));
        ServletOutputStream out;
        //通过文件路径获得File对象
        File file = new File(path);
        Date date = new Date();
        System.out.println("date1"+date);
        try {
            FileInputStream inputStream = new FileInputStream(file);
            //3.通过response获取ServletOutputStream对象(out)
            out = response.getOutputStream();
            System.out.println("date2"+date);
            int b = 0;
            byte[] buffer = new byte[1024*10];
            while (b != -1){
                b = inputStream.read(buffer);
                //4.写到输出流(out)中
                out.write(buffer,0,b);
            }
            System.out.println("date3"+date);
            inputStream.close();
            out.close();
            out.flush();
            System.out.println("date4"+date);

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

用buffered缓冲

    public void download(String path, HttpServletRequest request, HttpServletResponse response) {
        try {
            String url="D:\\download\\3024IVRFailRecords20190502.txt";
            File file = new File(url);
            InputStream fis = new BufferedInputStream(new FileInputStream(file));
            byte[] buffer = new byte[fis.available()];
            fis.read(buffer);
            fis.close();
            response.reset();
            // 设置response的Header
            response.addHeader("Content-Length", "" + file.length());
            response.setHeader("Content-Disposition", "attachment; filename="+file.getName());
                        //如果是图片可以开启
          //  response.setContentType("image/jpg");

            OutputStream toClient = new BufferedOutputStream(response.getOutputStream());
            toClient.write(buffer);
            toClient.flush();
            toClient.close();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        //return response;
    }
        用这个，上传的代码我也有 需要的话可以私信我，
        望采纳