How to make sprites not blur when zoomed in?

Question

Unity

Good day!
The game has the ability to zoom in (zoom) the scene. When approaching, sprites of different sizes begin to differ in blurriness (for some, the borders are clearer, for others, they are blurred). Is there any way to make them look the same when zoomed in and not stand out?
ps there are a lot of sprites and the option to make all images of the same size does not suit me, because the largest is 3mb.