Confused my Imagify image optimization tool

The plugin does what it’s supposed to do by either updating or replacing an image. Really liked the simple interface. The reason it’s just a 4/5 for me is that I use ‘Imagify’ to optimize my images. When I replaced/updated an image then ‘Imagify’ didn’t allow me to re-optimize it; as if it had got confused slightly. Therefore for me it was better to NOT use ‘Enable Media Replace’ and simply rename, upload, re-link to the new image instead. This then allows me to optimize and re-optimize the images as I am used to. Maybe use Shortpixel’s image optimization instead to recvent this issue as they will probably work better with each other?