Some explanations and concepts that may be needed

1. No fighter can easily unleash their full power in a struggle. Depending on the quality of their martial arts, the time required for a fighter to exert their full strength can range from several dozen seconds to several dozen minutes. The amount of true energy within a fighter can only sustain a varying number of full-power strikes.

In battle, the lethality of each move and technique of a fighter is far inferior to the power of a full-force strike under their ideal and perfect state. For instance, a fighter with the strongest chakra index of 5000 may only have an actual lethality of 100 for each move in combat. Moreover, due to the quality of their techniques, the lethality of a 100 chakra index may dissipate, resulting in even less actual destructive power.

In addition to books 3, fighters can unleash attacks equivalent to high-energy weapons, yet their bodies remain mere flesh and blood. Unless protected by vital energy, high-tech weapons can easily inflict damage on fighters, as their physical bodies are not immune to physical harm without such protection. Therefore, various accidents could lead to the demise of a powerful fighter

In practical combat, the greater the 'weight' of the true energy contained in each move and technique, the greater the lethality. For two fighters with equal maximum lethality, for instance, both having a Zhakra index of 5000, the true energy flowing through their meridians can vary in quantity over a unit of time. One individual may easily deliver an attack equivalent to a Zhakra index of 100 with each move, while the other can only deliver an attack equivalent to a Zhakra index of 80 with each move

The toughness of the meridians, the strength of the body, and the quality of the cultivation techniques determine the disparity in strength among fighters with the same title

For example:

The strength level of innate fighters is determined by the maximum power they can unleash in a full-force strike—this is under perfect conditions, meaning that the innate fighter is undisturbed and mobilizes all their strength to deliver a full-force attack without any time constraints.

2. The effective attack frequency of each fighter varies, determined by factors such as meridians, physical condition, and martial arts techniques, which result in different numbers of effective attacks delivered within the same time frame. For instance, among fighters with a Chakra Index of 5000, one fighter can deliver 30 attacks equivalent to a Chakra Index of 100 within ten seconds, while another can only deliver 25 attacks of the same equivalence in the same duration. This clearly delineates the disparity in strength.