@garfieldairlines Wow, just checked on my laptop and it's even worse somehow (also added Ed25519 for fun):
sign verify sign/s verify/s 256 bits ecdsa (nistp256) 0.0000s 0.0001s 32615.6 12088.9 384 bits ecdsa (nistp384) 0.0010s 0.0008s 993.6 1179.8 sign verify sign/s verify/s 253 bits EdDSA (Ed25519) 0.0000s 0.0001s 23910.4 8830.5