HarmonyOS鸿蒙Next中从相册选择9张照片上传服务器效率低

HarmonyOS鸿蒙Next中从相册选择9张照片上传服务器效率低 从获取到Uri数组到拷贝到沙盒再压缩需9秒，再上传需要3秒，有更好的解决方案吗？ 代码如下:

const photoViewPicker = new photoAccessHelper.PhotoViewPicker();
let photoSelectResult: photoAccessHelper.PhotoSelectResult = await photoViewPicker.select(photoSelectOptions);
uris = photoSelectResult.photoUris;
if (uris.length > 0) {
  let fileNames: Array<string> = [];
  let path = getContext(this).cacheDir + '/localImage/';
  console.log('开始压缩')
  for (let index = 0; index < uris.length; index++) {
    const photoUrl: string = uris[index];
    let fileName = ImageHelper.copyImageToSandBoxWithMediaUrl(photoUrl,
      getContext(this)); //拷贝到沙盒 fileNames.push(fileName); 
    let pathDes = path + fileName;
    let imageSource: image.ImageSource = image.createImageSource(pathDes);
    let decodingOptions: image.DecodingOptions = { editable: true, desiredPixelFormat: 3, }
    let pixelMap: image.PixelMap = await imageSource.createPixelMap(decodingOptions)
    let showImage: CompressedImageInfo = await compressedImage(pixelMap,
      maxSize) //压缩沙盒图片 
    localUrls.push(showImage.imageUri);
    originUrls.push(pathDes);
  }
  // 上传 
}