Is there a problem with this optimization?

(upload://dg2sDXyG42uWLRNKWPZQmqxknBW.png)
스크린샷 2023-06-30 125126
스크린샷 2023-06-30 125132
![스크린샷 2023-06-30 125118|497x414]
스크린샷 2023-06-30 125118

When I checked this with the Quad overdraw view, the effect looks different from the close-up view and zoomed out, somehow the optimization level looks different.
Does anyone know why the green color overdraw is constantly moving when viewed from a distance?
This is an effect made of a simple masked material that is supposed to be all blue in quad overdraw.