mratsim -- I don't get it. You told us recently that -d:danger is not enough for optimal performance, so use additional -d:release.
And I think I tested that indeed. But from [https://nim-lang.org/docs/nimc.html#additional-compilation-switches](https://nim-lang.org/docs/nimc.html#additional-compilation-switches) we get the impression that -d:danger is enough, adding additional -d:release would make no change. Because -d:danger is "Turns off all runtime checks and turns on the optimizer."