Ok with empty messages I get:

Signing: SHA-512=13.5us BLAKE3=13.5us (no difference, message was empty, this makes sense)

Verificatin: SHA-512=30.1us BLAKE3=30.4us (within margin of error)

Strict Verif: SHA-512=31.6us BLAKE3=30.9us (within margin of error)

with 4416 bytes of data I instead get:

Signing: SHA-512=25.5us BLAKE3=19.0us (25% faster)

Verif: SHA-512=30.0us BLAKE3=26.5us (11.6% faster)

S. Verif: SHA-512=38.3 BLAKE3=31.9us (16.7% faster)

So I was wrong. Obviously with no data you aren't going to see a difference.

I'm not sure EdDSA with BLAKE3 has any solid implementations out there though, and the standard specifies only SHA-512 so I would be non-compliant.

Lemme think..... non-compliant..... how does that sound.... Hmmmmm.

Yes, sounds great.