Like many open-source utilities, the UI is functional rather than flashy. It prioritizes speed and utility over modern aesthetics.
The LZMA and LZMA2 compression algorithms remain some of the best in the industry, often significantly outperforming standard ZIP utilities in terms of file size reduction. KM-P.7z
It is incredibly fast and consumes minimal system resources, making it ideal for both high-end systems and older hardware. Things to Keep in Mind: Like many open-source utilities, the UI is functional