Profiling a Compose Multiplatform app in the browser

Wed, 07 Oct 2026 00:00:00 +0000

You’ve noticed a performance problem #

First steps #

I hope everyone already knows that to check the performance of a Compose app, you need to run it in release mode. Development mode is designed for quick iterations and skips a lot of build-time optimizations. So first of all, if you see that the app is lagging and dropping frames, make sure you’re not running it in development mode.
If the problems are still there even in a release build, then, of course, you need to figure out what went wrong. Don’t jump straight into the hardcore stuff! First, just take a sensible look at what’s happening inside the app. Nobody knows your codebase better than you do. Maybe, by accident, you’re decoding a large JSON file on the UI thread. Or maybe you’re making a database query. And so on. 😉

Performance on terrakok

Profiling a Compose Multiplatform app in the browser

You’ve noticed a performance problem #

First steps #