https://openmodeldb.info/models/4x-Nomos2-otf-esrgan，TESTED ERROR

[starinskycc]

I tested this model using the example image on the page, but it did not achieve the clear effect shown in the example. It's just that the image has been enlarged by 4 times, it's still blurry.

[joeyballentine]

That's because your input image has been enlarged with nearest neighbor resizing. Scale it back down before upscaling