Just based on my current experience with Fidelity, supported by others on this forum in the same boat, it appears that they tend to move in "batch mode", rather than "real-time".
I'm guessing they package a lot of things together and send them through the process steps in mass?? It took 9 days to submit the accepted offer to ROFR. ROFR took 15 days.
Then it took 31 days after ROFR to get my closing documents. I turned my payment around same day and Fedex'd overnight. It took another 9 days to get the seller's closing documents.
Today is Day#71 from date of offer - 2/9/20