Image Size Preview Window

Image Size Preview

I wish there was a way to turn off the Image Size Preview, before I resize... 🙊 when working on a very large file you have to wait for the process bar to 'Build the Preview' every time you change a value. 

I don't particularly see the value in having a preview window here, but if it is to stay please at least allow users to turn off the preview BEFORE resizing a very large file 

Thanks