Yes, it will reduce the page size and that’s why increases page speed a little bit but I would recommend you to replace logos and reduce Transparent-logo-2.png 1239×463 to 230×86 and bra_lingrie.png 2000×1167 to 257×150.
Also, if you need site optimization you may submit the request to WPKraken team They offer optimization services because site speed it’s not just images.
