PPT and PPTX slides are shown blurry and the viewer cannot be increased when displaying them with the Office Viewer

After adding a PPTX file using the Office Viewer macro, the result includes blurry content and the viewer is very small, affecting especially the display of slides with more and small text.

This is a full screen view result:

And this is outside of the full screen:

Could the offered result be improved? And especially, could an option to set a quality/viewer size parameter for office ppt imports be added?