This seems doesn't work on my AMD RX580 8gb. Any solution to this?

Hi dude, my etherminer does not work and after added the -eres 0, it started to work but at the rate of 11mh/s from 30mh/s earlier on. Im using sapphire rx580 8gb. I have tried to switch to other miner but resulted the same. How to solve this? thanks in advance.

I got an issue today anyone can help?

ETH: Stratum - Cannot connect to asia1.ethermine.org:4444
ETH: Stratum - Failed to connect, retry in 20 sec...

Any idea why? I ping the address and seems no issue?