Contentsquare 2023 (n=997 customer sites): Good INP retail users converted 2.5% vs 2.0% for Poor (25% relative lift); +45% on desktop

Claim (Contentsquare, Rich Bentley, Nov 8 2023): "that's a 25% better conversion rate for users with good INP, which could equate to millions of dollars depending on your business."

• Retail conversion: 2.5% (Good INP) vs 2.0% (Poor/Needs Improvement).
• Desktop conversion gap: 45% (4.2% vs 2.9%).
• Bounce rate: 47% (Good) vs 52% (Poor).
• Frustration (rage clicks): 15-17% higher under poor INP.

Methodology: 997 customer sites, May 1 – July 31, 2023.

Source: contentsquare.com/blog/interaction-to-next-paint.

Confidence: Medium. Vendor study, large sample. The author explicitly states: "Correlation does not equal causation" — and notes the confounder that bouncing users may simply not interact long enough to register good INP.

Use: quote with the methodology caveat. Stronger when paired with the A/B-isolated cases like redBus (2023): INP improved ~72% on search page → +7% sales (6-7.2% CR uplift across operating countries).