Slow performance when dealing with large Datasets

[jinnyzor]

Hello @seventy77,

You should look into serverside outputs here:

Show and Tell - Server Side Caching

The Store component in Dash makes it easy to share state between callbacks. Under the hood, the data are stored as JSON in the browser. This approach is chosen to keep the server stateless (i guess), but it has a few drawbacks As the data are stored in JSON, you must convert objects from/to JSON in the beginning/end of each callback Since the callbacks are executed server side while the data are stored client side, the data will be sent across the wire every time a callback is invoked The maxi…

This keeps you from having to exchange it back and forth with the network.