About +8% compared to lzma. Decompression time though:
<span style="color:#323232;">zstd -d -k -T0 *.zst 0,68s user 0,46s system 162% cpu 0,700 total
</span><span style="color:#323232;">lzma -d -k -T0 *.lzma 4,75s user 0,51s system 99% cpu 5,274 total
</span>