Tim Kadlec
where else to find them
website:https://timkadlec.com
github:timkadlec
bluesky:tkadlec.bsky.social
x:tkadlec
linkedin:tkadlec
speakerdeck:tkadlec
what they talk about
all 8 in the filters
where they keep going back
- performance.now()5 editions2018–2025
- Smashing Conference New York2 editions2018–2018
all 7 in the filters
on a stage with
never shared a talk
who talks about the same things
- Steve Souders26 talks
- Tammy Everts14 talks
- Anna Migas12 talks
- Harry Roberts37 talks
- Ben Schwarz10 talks
- Ilya Grigorik18 talks
| title | conference | date |
|---|---|---|
| Stubborn Empathy | performance.now() 2025 | 2025-10-30 |
Argues that web performance needs stubborn empathy not slogans and lists concrete shifts: Core Web Vitals are going cross‑browser, showing P75 INP ~88ms Chrome… | ||
| In the Blink of an Eye | performance.now() 2024 | 2024-11-14 |
Claims that tiny delays matter: 100 milliseconds separates “instant” from lost revenue (Walmart ~1% uplift, Zalando ~7%), humans process images in ~13… | ||
| From Here to There | performance.now() 2023 | 2023-11-02 |
Crowdsourced experiments turn into concrete wins: Largest Contentful Paint lands in multiple browsers, WebPageTest and SpeedIndex seed hero-image timing work… | ||
| When JavaScript Bytes | performance.now() 2019 | 2019-11-21 |
JavaScript is byte‑for‑byte the costliest resource: median mobile sites send ~378 KB compressed (≈1.8 MB on‑device), Chrome data shows 1.7 MB AGC vs 1.8 MB… | ||
| The Long-Tail of Performance | performance.now() 2018 | 2018-11-08 |
Examples and analyses show the long tail drives real user harm: median site weight is median 1.5 MB while the 90th percentile 5.7 MB users suffer far worse… | ||
| The Long Tail of Performance | Smashing Conference New York 2018 | 2018-10-23 |
It’s time to accept that system and network failures are inevitable and to start designing our systems to withstand them. Accomplishing this isn’t easy but… | ||
| Performance Audit (Live) | Smashing Conference Toronto 2018 | 2018-06-26 |
Tim will be looking into a workflow for finding and dealing with performance bottlenecks and explore common performance problems appearing in websites and… | ||
| Redefining Web Performance | DeltaV Conference 2018 | 2018-05-10 |
Argues that web performance is a cultural problem not just a metric and gives concrete evidence: median page weight 1.5 MB, 90th percentile 5,754 KB… | ||
| Once More with Feeling | Front-Trends 2016 | 2016-05-18 |
Claim: perceived speed matters more than raw bytes. Users feel anything over 100 milliseconds and revenue moves — Amazon/Walmart report ~1% gain per 100ms… | ||
| on modern web perfomance | Velocity Santa Clara 2015 | 2015-05-27 |
Describes running Radio Free Europe where users face poor connectivity, low‑power devices, blocked sites and life‑risking censorship so performance equals… | ||
| Better by Proxy | Mobilism 2015 | 2015-03-27 |
Proxy browsers route requests through clouds (Chrome Data Saver, Opera Turbo, UC, Puffin) and transcode assets — images converted to WebP drop example pages… | ||
| The Space Between | beyond tellerrand Berlin 2014 | 2014-11-03 |
Argues that attention to intermediary states measurably improves experience: replacing progress bars with skeleton screens reduces perceived slowness… | ||
| nothing matches | ||