Strange thing that I noticed with my cards, in solo mining they do 14.5-14.7 Mh/S in Ethash.
But, when I add DCR, performance in Ethash increases up to 15.2-15.3 mh/s + 100-130 mhs in DCR.
IF you mine ethereum, epoch is 136 already, I guess RX560 does 14.5 Mh/s at most. because of huge dag file.
It just means you didn't find right value for -dcri when solo mining
14.5 is probably top of the line for the Hynix memory, but for micron its around 15.7 for my gigabyte card...
I actually didn't try to push it further (micron) but maybe I'll try one of these days