\resizebox{\textwidth}{!}{%
\begin{tabular}{@{}lrrrr@{}}
\toprule Implementation & ECDSA sign & ECDSA verify & Schnorr sign & Schnorr verify \\ \midrule
\libsecp{} (C, via rust-secp256k1) & 23.6 & 12.6 & 20.5 & 13.2 \\
\kk{} (Rust, RustCrypto) & 15.3 & 25.0 & 11.6 & 24.5 \\
\libsecp{}, Mac Studio M3 Ultra & 29.2 & 16.7 & 24.7 & 16.9 \\
\kk{}, Mac Studio M3 Ultra & 18.8 & 33.5 & 14.8 & 32.5 \\
\midrule
pure Python reference (\code{src/wp34}, affine) & 3812.6 & 7237.1 & 14713.1 & 7417.2 \\
python-ecdsa (pure Python, ECDSA only) & 118.0 & 419.4 & --- & --- \\
coincurve (\libsecp{} via Python/CFFI) & 11.9 & 12.7 & 28.3 & 12.5 \\
\bottomrule
\end{tabular}}