Wow!

Performance report (total). Blocks: 101240373. Elapsed time: 42386318 ms (real), 51344322 ms (cpu). Memory usage: 12638244 (current), 13218128 (peak) kilobytes. Free space in SHM: 4181002 kilobytes.

42386 seconds is 11 hours and a bit short of 47 minutes. For a replay from scratch to over 101M, no RAM disk, 8GB SHM and block log on an external USB-C HDD.
Looks like number of blocks grows but the time to replay shrinks :o)