You are the best!

OK dev...
I'll take any optimizations you have got for my RX Vega cards....
Just talked to my buddy getting 75Mh pool side with 3x 1080ti's
I can't believe that his 3x 1080ti's are hasing almost what my 9x vegas are.

Welcome to my world.
I keep saying x16 algos are grossly unoptimised on AMD miners.
Nothing personal against andrucrypt, he's basically alone having done a decent miner for AMD. But without competition, why would he bother optimising to death? He prefers focusing on other stuff.
The optimisation war nVidia devs (Z-Enemy, T-Rex and CryptoDredge) have had on x16 shows how huge the difference is.