Upload multiple files.

I'm trying to upload multiple files, is there any efficient way other then below. Because, when I do this, I got problem when the network is so slow. Because all the image not executed successfully.

$thumbnails = request()->file('thumbnail');
foreach ($thumbnails as $thumbnail) {
    $thumbnail_name = $thumbnail->store('posts');
    $post->postImages()->create([
        'path' => $thumbnail_name,
    ]);
}

Thanks in advanced.