When running MIP models I basically stare somewhat obsessively at the log. Hence I noticed:
71 73 0.0423 292 18.1387 0.0000 87092 100.00%
First I thought, wow, Cplex needs a lot of time to do a single addition: the third solution only is noticed many nodes and many seconds later. But then look at the timings marked in orange. There is actually very little time between logs lines where the solution is found and where the number of solutions is reported. (This was a run with multiple threads, no doubt that played a role).