React Performance Engineering
Measure before you optimise. Profiling, render behaviour, concurrent features, and shipping less JavaScript.
COURSE · WEB DEVELOPMENT
React Performance Engineering
12 LESSONS
YOUR INSTRUCTOR
Mira Kovac
Mira has spent the last decade building large React applications and then making them fast again. She works on rendering architecture, and cares more about what ships to the browser than about what looks clever in the editor. She teaches the way she debugs: measure first, form a hypothesis, change one thing. Her courses lean heavily on the profiler and the network tab.
View instructorWhat you'll learn
Measure honestly
Use the profiler and field metrics to find the real bottleneck instead of the one you assumed.
Control re-renders
Understand why a component re-rendered and fix the cause rather than papering over it with memo.
Use concurrent features
Keep the interface responsive during expensive updates with transitions and deferred values.
Ship less JavaScript
Split, lazy load, and prefetch so the bundle stops being the first thing that hurts.
Course content
4 MODULES · 12 LESSONS · 2H 21M TOTAL
MODULE 01 Measuring Performance
Getting numbers before you change anything: profiling tools, field metrics, and finding wasted work.
3 LESSONS · 37M
MODULE 02 Rendering Optimization
The tools for cutting render work — memoisation and stable identity — and when reaching for them is the wrong move.
3 LESSONS · 34M
Every lesson, searchable to the second.
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