I am using 9 sliced images as button and panel image on my game. For desktop version it looks great. However on mobile the UI needs to get scaled to support high DPI screen and that is when my button and panel looks pixelated. Wherever I am not using 9 sliced images, I can fix this pixelation by providing a higher resolution image and scaling the image down on desktop gui. However for sliced images providing high res image is not possible since that will look way too big on desktop and low dpi devices.
What can I do to solve this issue?