Documentation/Explanation for game timing mode?

[ArcaneTourist]

A "game timing mode" was added to the settings screen about a year ago. It's listed in the patch notes in the crashes section and says:

Rare Timing Issues: added game setting to allow changing how time progression works in-game. Can be used to fix crashes and timing issues on some CPU/hardware configurations. If you are experiencing otherwise unresolved crashes, especially if you see timing mentioned in the crash log, please use the setting 'Game Timing Mode' at the bottom of the General section to switch to 'Always Use Safe Mode'

Does this setting affect "simulation debt"?

The "time progression" language makes me suspect that it does reduce simulation debt (and probably slows the game down when needed). The rest of the description makes me think it's something unrelated, maybe a different low-level thread synchronization model or something else that should only be enabled when seeing certain problems.

I can't find any description of "game timing mode" other than the one blurb that I quoted above.

Can you provide more detail? Would enabling this make for a more accurate simulation or reduce the probability of incorrect outcomes?