I've been using claymore for my RX X80s for over a year now. Decided to give phoenix a go...and I'm damn happy I did: slight improvement in hashrate at the same clocks and power and significant reduction in stale shares! I've been suffering from 5-15% stales (ethermine.org) since Byzantium fork in 2017. With phoenix I have <1% stales.
Great job, man.
Retraction of my previous statement: number of stale shares is marginally lower than claymore's. During the first few hours of running phoenix I indeed had <1% of stales; number increased with time though and as of now I'm back to 5-10% stales.
Bad job, man!
Your 5-10% stale share is arguably bad. With the PH 2.9e, migrated from Claymore 11.5 my stale share rate is slightly higher than on Claymore yet still in the range of 1-3% - varies from day to day.
Stale share is sensitive not only to the miner code but also on the quality of your network speed and latency. Shares are accepted in 40-42ms in my case. What is yours? What is your ping to your pool? Here is what I have:
C:\Program Files\NVIDIA Corporation\NVSMI>ping eu1.ethermine.org
Pinging eu1.ethermine.org [46.105.121.53] with 32 bytes of data:
Reply from 46.105.121.53: bytes=32 time=59ms TTL=54
Reply from 46.105.121.53: bytes=32 time=42ms TTL=54
Reply from 46.105.121.53: bytes=32 time=41ms TTL=54
Reply from 46.105.121.53: bytes=32 time=41ms TTL=54
Ping statistics for 46.105.121.53:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 41ms, Maximum = 59ms, Average = 45ms
Connect a rig to network using wired connection (avoid wireless at any cost). Make sure you are not using switches/APs that introduce unexpected latency.