All programs based on SECP256K1 by JLP have very similar performance when running on a CPU. They operate at the same speed using the same function Point Secp256K1::ComputePublicKey(Int *privKey). Other components such as AVX SIMD hashing, bloom filters, the kangaroo algorithm, or the BSGS algorithm can speed up specific scripts. However, unless SECP256K1 itself is accelerated, it doesn't matter which program you use if it's based on JLP. Same shit.