Analyzing Notion app performance

Here’s a fantastic case study where Ivan Akulov looks at the rather popular writing app Notion and how the team might improve the performance in a variety of ways; through code splitting, removing unused vendor code, module concatenation, and deferring JavaScript execution. Not so long ago, we made a list for getting started with web performance but this article goes so much further into the app side of things: making sure that users are loading only the JavaScript that they need, and doing that as quickly as possible.

I love that this piece just doesn’t feel like dunking on the Notion team, and bragging about how Ivan might do things better. There’s always room for improvement and constructive feedback is better than guilting someone into it. Yay for making things fast while being nice about it!

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