R&D team is researching the case already. If you don't mind, keep the case open for now.The fix does work for Azure to on-prem, we get 200MB/s+ . However restore from Azure to Azure doenst go passed 18MB/s. According to the engineer this is what his lab also shows as speed and what to expect. Is this really the case as this make it unusable, much to slow restore speeds. And it gets divided by each active restore session.
I will keep you updated on the results of our findings.
Thanks!