(off-topic?) inter-language 'drag race' competition

Former Microsoft engineer turned YouTuber Dave Plummer (https://www.youtube.com/channel/UCNzszbnvQeFzObW0ghk0Ckw) has instigated a test of language performance in one of his videos (https://youtu.be/tQtFdsEcK_s for the latest installment)

I'll leave it to the interested to investigate his channel further, he's got some interesting stuff for long-time users (victims ?) of Microsoft.

The 'competition' involves calculating primes as quickly as possible, and there are now 45 languages 'competing'.

It's a community effort over at: https://github.com/PlummersSoftwareLLC/Primes

There is a VB implementation which is 'ok', but I was able to get about a 15% performance improvement with minimal effort.

And I'm sure there must be ways of improving it further.