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.
neoscrypt on gtx1070 is not very memory bounded and does 1400khs with max os on Samsung mem. So I was expecting 1500-1600khs with gtx1070ti. Real life was a shock ))