I am not in a competition when it comes to quilting. Sometimes it takes forever and a day to finish. If someone has the time and the resources to finish that many, then more power to them. A lot depends on the size, pattern, and type of quilting used.
Last weekend I made 2 child-size tops with simple 4-patch and alternating patches. Those tops went together quickly BUT they are hanging on the banister waiting to be sandwiched, quilted, and bound and THAT is going to take a bit longer.