How to resize images in Responsive Filemanager?

I can not configure config.php. I need to resize the image if it is larger than 1920x1080. And if it is less, then do not change.

My configurations:

'image_max_width' => 1920,
'image_max_height' => 1080,
'image_max_mode' => 'auto',

'image_resizing' => true,
'image_resizing_width' => 0,
'image_resizing_height' => 0,
'image_resizing_mode' => 'auto',
'image_resizing_override' => true,