It works for me also. Exactly speed like genoil 21 mhs with 1080 MSI (Win 7x64, 372.54). CPU load is ok.
Previously, I used version 5.3 and MSI AF for speed control and overclocking,
"timeout /t 60
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool
http://185.86.79.245:8545 -mode 1 -ethi 16 -esm 1 -tstop 89 -gser 1"
on 6.1.3, after starting my fans resets to autospeed, but if I set the option -tt 0 I can`t keep track of temperatures