Greetings,
I went back to version 1.09 because version 1.11 got me down the RX6800 at 61 Mh / s. and the RX580 at 32 Mh / s.
yes. v1.09 is performing better than 1.11 on amd cards. Next v1.12 will restore the performance
We are working on a new and improved opencl code that will improve performance further on AMD cards. ETA around 2 more weeks.