How many of them do you have?
Have you checked HWInfo for memory errors on your cards?
What is your power consumption per card?
What are your overclock / undervolt settings?
Well I only have Hynix ones but those numbers does not sound too bad..
If I would change something I would increase the -dcri parameter in order to reach 900mh on DCR (the sacrifice in ETH actually has a minor stability benefit - less fluctuations- at least for me)
These speeds are with Elpida 4gpus

These speeds are with Hynix 4gpus

Windows 7, Robinhood drivers, AB 4.4.0 beta 16, Claymore miner v10.0
My core clocks are locked at 1300MHz for both rigs and no matter what I put in AB it won't change a thing, so I change it in batch file with -cclock
My -dcri value is 25 I think it's best for me.
Is ETH+LBC dual mining more profitable with a new v10.0 miner?
Thanks