It takes about 3 seconds per sample when I use GNU Parallel to run 10 parallel jobs, and 6 seconds otherwise.
Results of all 412 samples:
https://pastebin.com/raw/xDUUK2pA.
In the PCA below, the outliers in the top left corner of the plot got something like 99.5% or 99.7% of Baltic. I don't know if it's because they were used as reference samples in K13. LTG-356 is an outlier because it only got 21.48% North_Atlantic, 74.47% Baltic, and 4.05% West_Med, and 0% all other components. LTG-441 is closest to Russian_Kargopol and LTG-566 is closest to Russian_average.
https://i.ibb.co/QXL8jBJ/1.png
Sorry, I fixed it now.