\begin{table}[htbp]
\centering
\begin{tabular}{lccccc}
\toprule
\textbf{Metric} & \textbf{CSSR} & \textbf{Spectral} & \textbf{CSM} & \textbf{BSI} & \textbf{NSD} \\
\midrule
Time @ $N=1$M & 13.5 s & 38.1 s & 1.2 s & 25.8 s & 4.0 s \\
Speedup vs CSSR & 1$\times$ & 0.4$\times$ & 11.4$\times$ & 0.5$\times$ & 3.4$\times$ \\
Correctness ($N \geq 1$K) & 80\% & \textbf{98\%} & 45\% & 25\% & 75\% \\
\bottomrule
\end{tabular}
\caption{Summary of performance characteristics across all algorithms.}
\label{tab:perf-summary}
\end{table}
