don't wait for someone to code CUDA GPU

try test
https://github.com/iceland2k14/secp256k1

still use CPU but better than simple python
but the result get is pubkey base

I know CUDA GPU fast than 1000x time

how fast between compare speed
python ecdsa+gmpy2   (pip install ecdsa[gmpy2])
python + fastecdsa  (can use only on Linux or WSL2, can not use in windows)
python + iceland2k14/secp256k1   (dll on windows)

have other options available for fast  point addition , multiplication on CPU