Your funnel was fast when you launched it.
It isn't anymore.
You just haven't checked.
😮
Here's what happens to a live funnel over time.
You add a new tracking pixel. Then a chat widget. Then a video embed. Then a retargeting script from a new ad platform. Then your developer drops in a third-party form tool that pulls in its own library.
Nobody optimizes any of it. Nobody even notices.
Meanwhile your LCP is quietly climbing. 1.8 seconds becomes 2.4. Then 3.1. Then 4 seconds on mobile. Each change felt small. The cumulative effect is a funnel that loads like it's 2009.
This is Speed Rot. And it's happening to most live funnels right now.
Here's why it matters beyond the user experience.
Google uses Core Web Vitals as ranking factors. LCP over 2.5 seconds and you're already in yellow. Over 4 seconds and you're in the red -- and your organic rankings are feeling it.
But that's not the expensive part.
The expensive part is what it does to your ad costs.
A slow page tanks your Quality Score. Google knows your page is slow before your visitor does. They charge you more per click for it. Not directly. Through the auction. Your competitor with a faster page on the same keyword pays less per click than you. Every. Single. Day.
And your analytics? Shows sessions. Doesn't show the 53% of mobile users who bailed before the page finished loading. Doesn't show the Quality Score degradation. Doesn't show the CPC premium you're paying right now.
Walmart documented a 2% conversion increase for every 100ms improvement. Amazon found the reverse -- 100ms of added latency cut sales by 1%. Different companies, same conclusion. Speed is a revenue variable.
Speed isn't a one-time optimization. It's a signal that decays. Like everything else in a live funnel.
When did you last actually measure yours? Not guess. Measure.
🚀
- James