Question regarding -m 20710 (hashcat beta).

[BadQuestion5041]

I'm receiving "Salt-length exception" (64:64) when using the -O flag in my command.
Without the -O flag it runs, but the speeds are VERY slow, is there anyway to fix this?

I'm unsure how these things work, but maybe I could pay somebody to update to kernel for me (if that's whats needed).

Thanks, hope to hear a reply.