Duration to recover

I have been running Recuva on my portable drive which contains about 5000 digital images and some documents. Recuva has been running now for 2 days with the progress bar currently showing progress of 2900% (?) and the "Estimated time left" fluctuating between what looks like a random number of days, anything between 3 and 53.... what is going on? Hold I abandon this process or wait? I am using a deep search.

Thanks

Well, 10556% (???) and nearly 4 days scanning of over 5000 images and documents and all that was recoverable was a mere 25 items NONE of which are complete enough to be edited in Photoshop... a small disaster really. So, thorough but not much use I am sad to say.