Rsync is too slow

[Rupert Gallagher]

Latest obsd with new 4TB wd red ssd disk copying from 2TB seagate exos returns 
80GB in 8 hours with zero activity by other tasks. The server has 12GB ecc ram 
cache. Copying 1.4 TB from a nas to the same exos took 2.5 hours shy. Is there 
a problem with how obsd handles internal storage? Or a problem with the default 
kernel sysconfig and staff defaults?