Finsweet client first doesn’t make sense

Does anyone happen to know the base CSS size of the Client-First framework? MAST framework claims to be about 32kb and I believe Saddle is similar (structured very similarly to MAST), while most sites built with Tailwind ship about 10kb of CSS. Pretty small differences there, so I’d be curious to see what the average Client-First site uses and how/if that affects site performance.