Bminer: lower hashrate on Hiveos 05.60

I use bminer 7 on hiveos 05.50 for equihash mining with hashrate 3690 - 3710 sols (1 rig : 7 x 1070 8gb & 1 x 1060 3gb - miningpoolhub). With the same rig and the same settings on hiveos 05.60 the bminer’s 8 hashrate is 3360 - 3370.

I tested manually on hiveos 05.60 and bminer 7 & 9 but the same results.

I flashed a new usb and the same results.

Any idea about that?