claymore

Dear Sirs, What I experienced; 4 gpu (1x assus strix rx470 + 3x msi rx470). Claymore was showing me 2100 h/s on screen but pool hashrate is 1700 h/s. (after 12 hours test) After start use xmr stak, screen hashrate and pool hashrate almost same. (after 9 hours test) When I was using 3 gpu...