Java/Android - ListView (optimization) when I load many images

Question

i have project when i use listview and in this listview has a Image, naturally, these images will be downloaded, and the problem is that if a person does not wi-fi through, the traffic just quickly go away. How do I make the images weighed less?

I can download in two ways.

First:

UrlImageViewHelper.setUrlDrawable(holder.image, URL);

Second:

Picasso.with(ctx)
            .load(URL)
            .resize(800, 800)
            .centerCrop()
            .into(holder.image);

I think, need to download image in low quality, but i dont know, which library so can