Character Animator Project in low resolution when imported to Premiere

Any tips for importing a character animator project into premiere that has a higher resolution. I have a black screen in as a background, which in CH ANIM looks clear and smooth. When I import the project into Premiere, it's grainy and/or patchy and not the smooth, clear black background that I need. My character is in lower resolution as well. It's particularly noticeable when I export the mp4.

Thanks