Is it normal that with drivers 18.5.1 I had 1850h/s and now i installed 18.11.2 (for battlefield5) and I have 1130h/s with vega 56
I didnt change shit on config
First, check if the Compute mode is on. Second, from what i have heard, Vegas have issues with drivers past 18.6.1. So you may have to downgrade the drivers.
The 18.6.1 issue was just on xmr-stak/variants, or any other miner using the old wolf codebase which generated opencl kernel binaries at runtime. I have had no issues w/ any driver version through 18.10.x on other miners including this one - though I can't vouch specifically for 18.11 yet.