I would always assume submissions don't get looked at right away.
Back in January of 2017, an "RFE" from NVC always reset the clock. At that time, it took 12 weeks for NVC to DQ a case......If NVC sent an RFE, it meant the clock would be reset......This happened to us. Our attorney didn't initially submit everything to NVC. As a result, after 12 weeks we received an "RFE". It took ANOTHER 12 weeks after his office sent NVC the document they needed. Attorney mistake cost us 3 months of extra separation. Our case was at NVC for an entire 6 months.....