Angled Linked images pixelated ONLY on export

Hi, I've been dealing with this for a long time, since export replaced the old "save for web" command.

When I have linked images placed at ANY angle different from 0º the exported artboard results in pixelation.

This doesn't happen if I use the legacy Save For Web command. This is makes the multiple artboard export completelly useless, because if I want to avoid pixelation, I have to export every artboard individually.

This also happens to EMBEDDED images which I don't use since it makes the file size too big and slow.

I'm attaching two images of the same file, one was created with EXPORT command and the other with SAVEFORWEB.