Some quick numbers for equilibrium, assuming it works how it reads…
Normally, entrance speed for +9 monsters is as follows:
99% = 30.1s
For each -10% speed, it’s roughly +6.75s.
| Monster speed | Entrance +9 (s) | Equilibrium (s) | Difference |
|---|---|---|---|
| 99% | 30.1 | 198 | +168 |
| 95% | 32.8 | 190 | +157 |
| 90% | 36.2 | 180 | +144 |
| 85% | 39.6 | 170 | +130 |
| 80% | 42.9 | 160 | +117 |
| 75% | 46.3 | 150 | +104 |
| 70% | 49.7 | 140 | +90 |
| 65% | 53.0 | 130 | +77 |
| 60% | 56.4 | 120 | +64 |
| 55% | 59.8 | 110 | +50 |
| 50% | 63.2 | 100 | +37 |
| 45% | 66.5 | 90 | +23 |
| 40% | 69.9 | 80 | +10 |
| 35% | 73.3 | 70 | -3 |
| 30% | 76.6 | 60 | -17 |
| 25% | 80.0 | 50 | -30 |
| 20% | 83.4 | 40 | -43 |
| 15% | 86.7 | 30 | -57 |
So to get any benefit they need to be monsters 36% speed or less. You gain massive benefit on monsters roughly 25% speed or less.
It very rapidly increases the seconds by a lot when you go into higher speeds. Becoming +50s at medium speed and +100s at high speed.