I think this can be more optimized, because 1070 can have 18-19mhs. 18mhs for 1080 it`s few. my 1070 could give only ~15mhs with your miner.
Of course it can, but it requires more time.
As for me, I do it for free (but anyway, it's GPL violation, if
Djm34 asks - I will remove it immediately), it's not my primary task, but for community it's better to have +1-2 MH speed increase to compete with private miner(OpenSource-based too, GPL violation too).
Equality is what crypto needs
