Version 1.7.1 is not my fork. My version is 1.5.78
ask:
why nicehash accepted share is always lower than the reported? for example, Lyra2 is accepted around 9600~ kH/s but nicehash only accepted 8.9 mH/s, no matter how long i mine, it always lower than my mining speed.

and what is the best intensity for lyra2 in 78 release? i'm using 970.
Wich version of ccminer are you using?
You should mine lyra2v2 and not lyra2.
i'm using your version. 1.5.78
this is my bat:
ccminer.exe -a lyra2v2 -o stratum+tcp://lyra2rev2.jp.nicehash.com:3347 -u 1AwFc6m5evP5a8csDWsb6S3joSaBx8ia1e -p d=4 -i 16
is 1.5.74 give better hash rate for lyrav2 than 78?