Possible to disable image crunching?

It is best to downsize them before using a program like Photoshop. If you upload directly using ftp there will be no crunching.

I have found a post that said change all the Image Sizes to 0 then save. This will stop word press from resizing your images.

Go to your Dashboard
Go to Settings
Go to Media
Clear any entries under the Image Sizes menu (set to 0)
Press Save Changes

https://electrokami.com/coding/wordpress-disable-automatic-image-thumbnail-resizing/

I have not tested this for myself yet.

hope this helps ??