Question UI Image Distortion When Rotated

I am creating a card-building game and have recently implemented hand "curving". Everything works well but the cards (which are UI Images) are distorted when they are rotated. I have tried implementing mipmaps and increasing the transparency around the images as was suggested on other forums to fix this but still end up with the results below:

I have found that changing my UI Canvas setting from "Screen-Overlay" to "Screen-Camera" does smooth the cards as I want, however, I have created everything up to this point in "Screen-Overlay" so many other aspects become broken. I would rather not have to rework multiple systems to work with "Screen-Camera" if possible.

Any ideas on how to reduce distortion when rotating UI images? Thanks for the help!