Page Speed → Revenue Impact
Model how LCP or extra delay could move conversion rate, monthly revenue, and yearly impact
Directional model — not a guarantee.
Conversion lift from speed is messy: industry, device mix, offer, and trust all dominate. The default ~1% relative CVR change per 100 ms is a commonly cited rule of thumb (retail / Amazon-style studies), not a promise for your store. Treat outputs as a conversation starter.
1 Traffic & commerce
Site-wide or the template you plan to speed up
Orders ÷ sessions, as a percent
Revenue ÷ orders
2 Speed & assumption
LCP mode subtracts a target (default 2.5s, “Good” Core Web Vital). Delay mode is a raw improvement you already measured.
p75 from CrUX, Search Console, or RUM
2.5s is the CWV “Good” threshold
e.g. 1.2 if you expect to cut 1.2s from LCP or load
Presets write the per-100ms field; you can override it
Relative, not percentage-points. 1 = +1% of current CVR per 100ms saved.