This is the 1660th most frequent Korean word.
성능을
"Performance" or "functionality."
In this sentence, '성능을' refers to the 'performance' or operational effectiveness of a computer, and it is used as a direct object attached to the verb '테스트하다' (to test).
새로 구매한 컴퓨터의 성능을 테스트해 보았습니다.
I tested the performance of the newly purchased computer.
Here, '성능을' indicates the 'performance' that the software enhances. It represents an aspect the software actively improves on.
최근 출시된 소프트웨어는 성능을 향상시키고 사용성을 개선했습니다.
The recently released software enhanced performance and improved usability.
In this sentence, '성능을' is about evaluating or considering the 'performance' of a product to select the most appropriate one.