any hints why Ryzen starts with 180hs per Thread and drop to 130hs after some minutes (CNV7 lite)
and yes..got many duplicates at no nicehash pool
I have same issue. R7 1700x starts with 2200+ h/s and after few minutes h/r drops to 1700 h/s. Also all system GPU slow down h/r too . XMR-Stak (with similar settings for CPU) gets ~ 2140 h/s, but all works great.
P.S. Tested on two different motherboards (B350 and X470 chipsets) with two different instances of the processor.