Created attachment 136337 [details]
A vector graphic (like eps) used as a background image is rendered in poor quality when viewed in slide show mode.
Interestingly, the rendering is well done when adding the eps-image as an image object.
Additionally, when the odp-file is exported to pdf, then the image is rendered well.
The behavior seems to be already reported at
The attached odp file contains two slides: the first uses an eps-file as background image, the second displays an image object that is the imported eps-file.
Thanks for reporting this issue.
It seems to me like a duplicate of bug 87450
*** This bug has been marked as a duplicate of bug 87450 ***