I have the xsight 2 5X20, the model before the 4K. Remember it is not a scope with glass, it is a digital camera. The image will pixilizes as the magnification is increased. But it's great if it's used as it was designed..a daytime and nighttime digital scope that can take stills and video with a ballistic calculator, and a one shot zero. It wasn't designed to be a target scope. There are several videos out there that have the scope mounted on top of air rifles shooting rats at night, in total darkness, with the IR illuminator. Have fun with it, I have had mine on a .22, .556, .308, and 30.06. It's back on my 10/22 for plinking a pest control. But worked great on everything I mounted it on.
https://youtu.be/7ZORTkOzKDI