The obligatory set of speedups, which have been gradually implemented over the past couple of days.

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This version broke quite a lot of functionality, earlier, as minus numbers because infinitely more chaotic than they already were!
But a little to-and-fro'ing and everything got back to where it oughta be.
.. I hope!

As always, be sure to stress test it with anything you can think of.

I don't think anything has changed other than speedups.

If you'd like to check the Optimisationalism 2 test, you should (hopefully) find your numbers have improved a fair bit.
Let me know!