Presentation delay

[Adam Cable]

Hi,

We're seeing on low-end devices that the presentation delay can be quite large.

Is there a way to debug further, or do you have any best-practice guides to help with this?

Thanks,

Adam

[Barry Pollard]

Lots of details in these guides: https://web.dev/how-to-optimize-inp/#optimize-poor-inp-caused-by-rendering

Barry

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[Adam Cable]

Thank you once again, Barry!

Had an interesting case where using anchor links to content further down the page we were seeing INP >200ms, but replacing these with element.scrollIntoView() calls helped reduce to <100ms :)

Adam

[Barry Pollard]

Very odd! Were there any other event handlers or intersection observers on the page?

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[Adam Cable]

Yeah, there's a few event handlers & an IntersectionObserver but we just duplicated the links and tested the INP difference ;)