Zoom Region quality

Is there any way to preserve image quality when using Zoom Region?  When using zoom region the image you zoom in on looses quality and depending on the file type you can see more artifacts (.jpg) or becomes fuzzy (.png). I searched the forum regarding this and found some old posts on how to deal with this issue and even contacted some of the people that came up with the work around. Unfortunately that no longer works. Anybody find how to preserve the image quality as of recently?

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