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Scrolling causes a noticeable stutter on Docusaurus v2 websites #4454

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RA80533 opened this issue Mar 18, 2021 · 1 comment · Fixed by #4473
Closed

Scrolling causes a noticeable stutter on Docusaurus v2 websites #4454

RA80533 opened this issue Mar 18, 2021 · 1 comment · Fixed by #4473
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bug An error in the Docusaurus core causing instability or issues with its execution

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@RA80533
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RA80533 commented Mar 18, 2021 •
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🐛 Bug Report

Scrolling causes a noticeable stutter on Docusaurus v2 websites

To Reproduce

  1. Go to the docs section on the Docusaurus v2 website
  2. Scroll to the top of the page
  3. Attempt to scroll further upwards

Expected behavior

Docusaurus v1

Screen Shot 2021-03-17 at 9 01 38 PM

Maximum CPU Usage: 22.0%

  • Timers
    • 5 × setTimeout
  • Events
    • 44 × scroll

Actual Behavior

Docusaurus v2

Screen Shot 2021-03-17 at 9 57 53 PM

Maximum CPU Usage: 96.1%

  • Events
    • 160 × wheel
    • 42 × scroll
    • 7 × message
    • 3 × mousemove
    • 2 × pointermove
  • Observers
    • 889 × IntersectionObserver

Your Environment

  • Public site url: https://v2.docusaurus.io
  • Docusaurus version used: 2.0.0-alpha.72
  • Environment name and version: Safari 14.0.3 (14610.4.3.1.6)
  • Operating system and version: macOS 10.14.6
@RA80533 RA80533 added bug An error in the Docusaurus core causing instability or issues with its execution status: needs triage This issue has not been triaged by maintainers labels Mar 18, 2021
@armano2
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armano2 commented Mar 19, 2021

i'm going to work on this

@armano2 armano2 mentioned this issue Mar 19, 2021
Merged
@Josh-Cena Josh-Cena removed the status: needs triage This issue has not been triaged by maintainers label Mar 2, 2022
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bug An error in the Docusaurus core causing instability or issues with its execution
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perf(v2): reduce amount of component updates while scrolling armano2/docusaurus
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@armano2 @RA80533 @Josh-Cena