I tried to dual mine eth and sia, the two issues I got was

a) the miner was showing the same hash rate for sia and eth, and the sia hash rate was too low compare to my normal hash rate, about 50 times lower.

b) I was not getting any shares for ethereum, just a hash rate and 0 shares.

I am mining on a single M60 GPU, can it be that eth shares take "forever", or was there some other problem you think.