Exclude some images or some page from convert in WebP

Hi,
I ike a lot the plugin.It works fine.
But I’m looking for a way to exclude some images to be converted in WebP, or also to ‘not show’ the converted images but the orinal ones (jpg or png).
The reason of my request is because just in one page of my site I need high quality images because there’s a very detailed image that I need people can watch in the best way without loosing small details.
In order to get it, it can be also ok to exclude that page.

PS
I don’t know if I can directly delete those converted images from the WebP Express plugin folder or they come back in Webp.

Thanks a lot