I expected 650-700 stock. I dont know why this card is so low. Hopefully someone can mod it for a respectable figure. I'm not sure what newegg return policy is but I may need to look into it.
This card is indeed one of the worst RX 570s that I've tried but that being said you should still do around 800H/s with it. Just take a look at Anorak's website for a modded bios. If you don't get at least 750+ with the right bios then the card might be faulty.
I tried a bios from there. I thought it was the correct one. It bricked it. I used the 1500 memshift on this page
https://anorak.tech/t/msi-rx-570-armor-oc/4998
Perhaps I will try it again just in case it was a bad flash or something,