Movement slow is weaker than tooltip

lemonfrostt

New member
Many (possibly all) slowing effects in the game are weaker than their tooltip. This is inconsistent with how other effects work.

For example: Capacitor states a 75% slow, but when used against Vindicta, her move speed is reduced from 8m/s to 3.7m/s. This is a 54% slow.
(I tested this with a bot applying Capacitor to me in sandbox.)

Resistances do not behave the same way. A single source of resistance always applies the full effect. Multiple sources work as follows: the remaining proportion of incoming damage is the product of the remaining proportions corresponding to each source of the reduction.

In practice: Bullet Armor, while below 30% health, offers 60% damage resist (this is one source). The remaining proportion of incoming damage is 40%. Heroic Aura offers 15% damage resist, so the remaining proportion is 85%. Together, the remaining proportion of incoming damage is 0.40 * 0.85 = 0.34. 34% of the incoming damage remains, so the effective resist of the two items together is 66%.

By this method, Capacitor, with a 75% slow, has a remaining proportion of 25% move speed. By itself, it would have exactly this effect. And when combined with Mystic Slow, a 30% slow (70% remaining proportion), the result would be 0.25 * 0.70 = 0.175. 17.5% of the base move speed, or a 82.5% slow.

In actuality, the remaining proportion of speed for Capacitor + Mystic Slow is 3.2 / 8.0 = 0.4. 40% remaining speed, so a measly 60% effective slow.
(I tested this with the same bot as before.)

This applies to abilities too. Shiv's Knives, for example, apply 25% slow with a tooltip of 35%.

The glaring exception is the on-bullet-hit slow. It alone actually does follow the behavior outlined for resistances: the remaining proportion of speed is the product of the remaining proportion from all the other slows (however they are calculated), and the remaining proportion from the bullet-hit slow. It is the only slow I have found that works as expected.

EDIT:

Hypothesis:

The remaining proportion of speed is not calculated not by the method outlined for resistances, but by
e^(1 - (sum of slows))
This is excluding the bullet slow.

Essentially, it is always calculated in the "worst case", where a large number of sources are applying the total slow, rather than a finite number.

For Capacitor + Mystic Slow, this yields a remaining proportion of ~39%, corresponding to the experimental result.


EDIT 2:

Someone else pointed out that 2m/s of move speed is excluded from the slow calculation. This explains the discrepancy for items/abilities, then, since Capacitor applies 75% slow to 6m/s of move speed. Items do stack as expected, but with 2m/s of move speed always excluded. For whatever reason, the innate bullet slow ignores that 2m/s exclusion.
 
Last edited:
Back
Top