Hey doktor83
First I want to thank you endless lot, because of People like you the Internet ist today what it is.
We have only one problem, i first noticed that hashrate drops from ~2050H/s to ~1600H/s with CryptoNightV7 after around 2 Hours.
Then I could remember the DevFees are also done every 2 Hours, so i looked up and really, everytime 1-3 loglines after DevFee ist done the hashrate dropes.
Like it would stuck in a less efficient setup?
I use 4x Vega 64 with Registry changes optimised.
Lovely greetings,
S.O.
Any hint what could cause the problem?

It's 6-7 minutes after the devfee so nah, i don't believe that is related to devfee mining.
Maybe someone with Vega's could help you, i know there is a known problem with Vega's and hashrate drop.