I have a 6 card, MSI Armor 4gb rx 580 rig, using Claymore 10.2 I get 27-28mh/s in Linux, but I don't know Linux well and it kept crashing, I got fed up and installed Windows for the time being.  I get 16mh/s stock and up to 20.5mh/s modded, no memory errors.  

I am going to assume I have the wrong drivers, what driver works in Windows 10 best and if that isn't my issue any idea where to look?  I wouldn't be annoyed if it were 5% or so, but 25% is definitely something wrong from what I can find.