The standard set assumes values at time scale of 1 (normal speed at 30fps).
If you need "real" values of these, they can be accessed using the following:
This is done to make older mods work relatively normally, but also to spare modders of at least some of the horrors of dealing with time scaling.
To make an average mod at work relatively correctly on different framerates, this function will re-calculate speed based on time scale, assuming an impulse (one-off applied motion).
Also adjusts speed based on time scale, but assumes constant motion (like nudging a missile towards target).
This is the real motion_add, without any re-calculations.
Similar to above, speed will be adjusted based on current time scale assuming an impulse.
Similarly, the real motion_set.
And the following are left untouched: