Hello. I have several rigs with rx 470. On the first rig with only 2 cards(here is amd driver ver 20.4.2), hashrate is okay - 29mh/s. But on all other rigs(each one is with 8 cards) hashrate is extremely low - 9-10mh/s. I am using Phoenix Miner 5.0e, tried different AMD drivers: 19.7.5 and 20.4.2, all cards are in compute mode. Tried mining on different pools: nicehash, ethermine. With blockchain drivers hashrate becomes normal, but miner works unstable so I decided to update drivers and this happened. I will be glad to hear any suggestions and tips