Slow PDF generation (intermittent). Embedded image quality low

Hello

I'm trying to create a PDF document from a word (DOCX) template, and some json data.

All tests are done with the same document template, and the same json data.

Usual generation time is about 5 to 8 seconds. 

I have two problems:

1.  Intermittently, but mostly about/after 16-17 CET some requests to the Document Services API are very slow (over 30 seconds, sometimes up to 4 minutes and more)

For the 4 minute extreme the Azure logs show a lot of (100+) get requests calling cfp-ue1.adobe.io, returning 202. duration - 300-350ms to 1.4s, with small intervals between the requests.

Question: Do you have any idea why this is happening?

2. According to some of my colleagues, the quality of the image (company logo) in the DOCX file is lower when the output PDF document is reviewed.

Question: Is there a way to fix that?

Regards,

Vladimir