I have a rx580 4G running and I have -ethi 50 in my .bat. It was getting 28.6+Mh/s, then 1-3 days ago it started TOPPING at 28.4Mh/s. I started examining things and noticed at start up of the miner it is now saying -ethi max value is 16 after my .bat commands show in the miner. Why has the -ethi value been maxed at 16 now? A .3Mh/s doesn't sound like much but every bit helps, right?