You should be getting fullspeed with no bugs in the latest revisions, assuming your settings are sensible. Try using the settings in this thread on the latest revision, and you shouldn't have any problems.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
