lzop is still a single-threaded software (multithreading is planned for v2), but you can easily achieve process-level parallelism by using the amazing GNU Parallel tool. Also, I do recommend watching the GNU Parallel tutorial video at YouTube, which demonstrates a number of nice features.

lzop compares favorably in a number of reviews, including a nice article from the Linux Journal called Compression Tools Compared and the Huge Unix File Compresser Shootout.

The license of this software is Free, you can free download and free use this file compression software.