The alexis miner is doing 450 KHASH on the 1070ti, so you need a dev to change the code to do the expected 1100-1400 Khash. I am reaching 1300+ on the gtx 1070 with my cuda 9.0 mod and only 550 on the 1070ti.
$750 dollars is nothing. Devs need money too.
1360 with
klausT on 1070 Ti, not extreme clocks, locked at 912 mV as one of the cards struggled on 900, 1898 Mhz (if you lower the clock you can probably do more with mem, but I'm on autoswitch with Lyra2rev2 and it needs high core and doesn't need mem, so I chose the middle road). Alexis does just a bit less, not sure why is that yours doesn't do it.
And yes, 0.05 BTC was OK-ish before, now it's $750 and profitability changes in a day or two so you might never get to profit as much from the difference. Profitability in BTC dropped as a whole. The 5 minute dev-fee kills auto-switching profitability, but it's in the Bitcore mod I paid for, and I never agreed to have this in my miner.
I believe nvidia inspector has this option.
One of the versions. Google helps
