Case study: GeneratePress vs Kadence on a review-table-heavy site

Case study: GeneratePress vs Kadence on a review-table-heavy site

A review site with comparison tables on every page was failing Core Web Vitals — CLS 0.31 from tables loading after text. They rebuilt the same 50 pages on two review-friendly themes.

GeneratePress
Pros: ~$59/yr, ultra-light (~30KB), total control via hooks
Cons: barebones, you build table styling yourself

Kadence
Pros: free core, built-in table-friendly blocks, decent defaults
Cons: heavier (~90KB), more bloat to strip

Result: GeneratePress hit CLS 0.04 and LCP 1.6s after reserving table height; Kadence landed CLS 0.09, LCP 2.2s. The CWV pass correlated with a 9% organic lift over the next quarter on the rebuilt pages.

Gotcha nobody mentions: neither theme caused the CLS — it was the comparison-table plugin injecting unsized containers. The theme swap only mattered because GeneratePress let them set explicit table dimensions via hooks.

My pick: GeneratePress for max control on table-heavy sites; Kadence if you want decent speed without touching code.

Bottom line: the CLS killer was the table, not the theme — fix container height and either theme passes.