See
https://github.com/iczelia/bzip3
And old bzip2: not updated since 2019
https://de.wikipedia.org/wiki/Bzip2
https://sourceware.org/bzip2/
Or parallel lbzip2
lbzip2 https://github.com/caius72/lbzip2
Bzip3 is faster by Silesia corpus benchmark
So a transition to lbzip2 or bzip3 or a new faster codec like Zstandard, lz4 or others should be done.
See https://github.com/inikep/lzbench
See
https://github.com/iczelia/bzip3
And old bzip2: not updated since 2019
https://de.wikipedia.org/wiki/Bzip2
https://sourceware.org/bzip2/
Or parallel lbzip2
lbzip2 https://github.com/caius72/lbzip2
Bzip3 is faster by Silesia corpus benchmark
So a transition to lbzip2 or bzip3 or a new faster codec like Zstandard, lz4 or others should be done.
See https://github.com/inikep/lzbench