Improve page load performance #2155
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* main: (275 commits) [ci] release (withastro#2165) Define well-known RTL locales before calling `getLocaleInfo()` for default locale (withastro#2167) Update dependencies (withastro#2166) Improve page load performance (withastro#2155) docs: Add CodeSweetly to showcase (withastro#2160) [ci] release (withastro#2145) Fix bug for projects with spaces in their pathname (withastro#2156) ci: update file icons (withastro#2157) [ci] format Merge <link rel="canonical" /> tags, quick fixes (withastro#2153) (withastro#2154) Add two new showcase sites (withastro#2149) [ci] format i18n(zh-cn): Update `environmental-impact.md` (withastro#2148) add Saasfly showcase (withastro#2147) docs: add 'og:image:alt' metadata (withastro#2143) Deleting unnecessary twitter meta tags, quick fixes (withastro#2137) [ci] format i18n(es): update `environmental-impact` (withastro#2144) [ci] release (withastro#2142) feat: Add Pinterest icon to social list (withastro#2135) ...
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Description
tabindexmodule expressive-code/expressive-code#228Traces
Here are two traces with simulated 20x CPU throttling in Chrome. You can see that the same work still needs to happen, but table of contents and code sample logic is deferred until the main thread is idle, avoiding forced style recalculation/layout work and moving the
DOMContentLoadedevent earlier.Before
Download trace (6.9 MB)
After
Download trace (6.7 MB)