Hi, At https://www.phoronix.com/scan.php?page=article&item=xeon-windows-2019&a… , Michael Larabel from Phoronix Media identified a performance issue in our R performance. We just released build 26930 that should have this issue resolved; it turned out that the OpenBLAS (linear algebra library used by R and numpy and many other things) was not performing to expectations and needed fixing/tuning. So as of 26930 the performance of R and Numpy and others should be back to expectations