Interaction to Next Paint Subpart timings

Interaction to Next Paint Subpart timings breaks down the three components of INP:

Input Delay (inputDelay): The time from when the user interacts until event listeners start to run.

Processing Time (processingDuration): The time spent running event listeners and other JavaScript triggered by the interaction.

Presentation Delay (presentationDelay): The time from when the browser finishes processing until the visual update appears on screen.

Understanding these subparts helps identify which part of the interaction is causing slowness.