How to limit the number of images displayed in the media window?

maybe this other similar question (with a good answer) can help you.
Change default screen option value for media items per page (in media library)

And the filter to use is :

function my_edit_media_per_page(){
    $media_per_page = 200; //or whatever you want
    return $media_per_page;
}

add_filter( 'upload_per_page', 'my_edit_media_per_page', 10, 3 );