Performance
Critical CSS for Product Grids
You profile real catalog pages, extract critical slices, and document how designers can extend tokens without undoing performance wins. Includes collaborative review with performance mentors.
Live cohort 3 weeks Weeknights KST Performance
Tuition (planning only)
760,000 KRW
Informational pricing—no checkout on this site.
Facilitator
Amelia Cho
Performance mentor for omnichannel launches across APAC retail.
Inside the syllabus
- Coverage-guided critical CSS extraction
- Above-the-fold budgeting spreadsheets
- Collaborative handoff with design tokens
- Lazy decoding strategies for WebP/AVIF mixes
- Synthetic slow-3G walkthroughs
- Release checklist for asset pipelines
Artifacts you keep
- Deliver a PLP fork with measurable LCP improvement
- Share a token update guide merchandisers can follow
- Record a narrated trace comparing before/after
Participant questions
Do we touch build pipelines?
We review Vite/webpack hooks conceptually; you adapt to your internal toolchain.
CDN specifics?
We stay vendor-agnostic; bring your CDN constraints to office hours.
Limitations?
No server-side rendering frameworks—client bundles only.
Recent reflections
The token handoff doc reduced back-and-forth with our Jeonju studio—clear win.
Jisoo Han · Blueband Outfitters · Google