lazy-count=value
                          This  changes  the method of logging various persistent counters in the superblock.  Under metadata intensive
                          workloads, these counters are updated and logged frequently enough that the superblock updates become a seri‐
                          alisation point in the filesystem. The value can be either 0 or 1.

                          With  lazy-count=1,  the  superblock  is  not  modified or logged on every change of the persistent counters.
                          Instead, enough information is kept in other parts of the filesystem to be able to  maintain  the  persistent
                          counter values without needed to keep them in the superblock.  This gives significant improvements in perfor‐
                          mance on some configurations.  The default value is 0 (off) so you must specify lazy-count=1 if you  want  to
                          make use of this feature.