Images look terrible in adobe animate

Before you respond, yes, I am disabling smoothing on image files.

I have been comparing the image quality between bitmaps and images in adobe animate. I've noticed that while bitmaps look smooth, image files look just terrible when the VCam moves, with some weird graphics when the camera moves and calculates how the images should look. Can someone explain to me how to use images and no not have a loss in quality? I use massive bitmap files in my work for parallax backgrounds, but they are very resource intensive and I want them to be images instead.