# compose

Dmitry Chernozubov

08/29/2021, 2:38 PM
Hi all. Someone can explain me why lazy column slow and skipping frames and when it will be fixed? 🙂

Adam Powell

08/29/2021, 2:47 PM
Are you running a release build using r8? If not, do so; there are significant performance differences between debug builds, release builds, and optimized builds.
Additionally, on initial process startup you may see some initial slowdown in development environments because the runtime profiles for compose and your app are not yet installed. speaks a bit about this, and we're looking to publish more info about the process and how to best run local tests under the same conditions you'll see in production.
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We are not currently tracking performance issues specific to LazyColumn that aren't addressed by the above; if you have a specific repro case that you think is not, please file a bug on the tracker
@Andrey Kulikov may be able to give some more specific advice for your situation if you'd like to post some code

Sergey Y.

08/29/2021, 2:57 PM
@Dmitry Chernozubov also, check the thread or you can visit our telegram group(rus speaking) dedicated to declarative ui frameworks.

Dmitry Chernozubov

08/29/2021, 3:04 PM
Thx guys
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