Cleaning up distorted image

@NewAEUser 

If the image is a raster based format (Photoshop, JPEG, PNG, TIFF), then in Adobe Photoshop use Filter > Neural Filters > Super Zoom to up-convert the image and import that into your After Effects project.  I'd use the Neural Filter option to create a new document so that you can have the original image and the up-converted image.

If the image is a vector based file format (Illustrator, EPS, SVG), then enable the Continuously Rasterize Layser Switch in the Composition Timeline.  It's the second switch from left to right under the Switches column.

For more on raster and vector graphics formats:  https://www.adobe.com/creativecloud/file-types/image/comparison/raster-vs-vector.html