I had the command lag, 0,5-1 sec during open beta.
Processor: Intel® Core™ i7-4710HQ Processor (6M Cache, up to 2.50 GHz)
RAM: 16 GB Totalt
Graphic: Nvidia GTX 980M Operativsystem: Windows 10
Ingame i had 60+fps
my cable had 80+mb/s download speed when i played (checked)
(Live in sweden)
So no, its not due to graphic settings or internet speed
also mentioned in official reviews
http://www.eurogamer.net/articles/2017-04-20-dawn-of-war-iii-is-brutal-beautiful-and-inconsistently-brilliant (search for 8 millisecond and you will find it)
Some was probably server issue since after a earlier bug report the nordic servers became updated.
It is still there sadly to some extent. I removed V-sync and went from 60 fps to 80+fps during match, that also helped somewhat.
please fix...before release.. if you can:).