Your analytics tell you people left. This tells you they were furious when they did.
npm i frustration-observer
Three clicks on the same spot inside one second.
The pointer resting on something for two seconds.
A click, then a second in which nothing changes.
2.4 KB minified and gzipped, zero dependencies, any framework or none.
This checkout is real, and instrumented with the code below. Three of its controls do nothing at all. Use it the way an annoyed customer would, and watch the panel beside it.
Pro plan
€49