What hashrate are you getting with sgminer?
I have about 30 kH on each MSI Gaming X 8G RX480 (Win7 X64, 16.9.1 drivers, ETH-way modded BIOS, 1303/2200).
I wonder why do you still mine it now? The trading is frozen, and coin going to be dumped hard as soon as exchanges open.
But hashrate and difficulty are still insanely high for a hacked coin with zero working exchange, ready to be dumped...
Miners are not informed yet, or what..?