In the earlier stages, there were two methods to reduce energy consumption.
The first was origin ability control, with the latter being origin ability refinement.
Origin ability control would enhance one’s control over their origin ability energy, reducing needless waste. For example, 200 units of energy might be used in a situation where only 100 were needed, usually due to a lack of skill or incorrect methods.
Origin ability control would allow everyone to get closer to the ideal amount of usage.
As for origin ability refinement, its sole purpose was to reduce energy consumption!
For example, a skill that originally required 100 units of energy could be reduced by 10 percent through mastery of origin ability refinement. This would make the final consumption only 90 units of energy. This was a very practical and useful skill for students to know, as it greatly increased their overall strength.