Bricks vs Breakdance on a high-traffic lead form

Bricks vs Breakdance on a high-traffic lead form

A lead-gen page took ~40K sessions/month. We built the same multi-step form in both builders and split-tested for two weeks each.

Results:
— Breakdance form JS: 96KB vs Bricks 71KB
— Both hit sub-2s LCP; Bricks 1.6s, Breakdance 1.8s
— Form completion rate: 18.1% Bricks, 18.4% Breakdance

Completion was a statistical wash; Breakdance's native form UX edged it slightly despite heavier JS.

Pros:
— Breakdance form builder is more flexible out of box
— Bricks stayed marginally lighter

Cons:
— Breakdance's extra JS for negligible UX gain
— Bricks needed an addon for multi-step logic

Best for: form-heavy pages where UX polish matters more than shaving 25KB; pick by feature fit, not weight alone.