Théo Pons
Théo Pons
Correction : Slow down happens only on the second click on the transpose button.
I found a way to get around the performance issues using apiRef : [Code here](https://codesandbox.io/p/sandbox/performance-data-grid-forked-ccdlcp?workspaceId=458ece4a-8839-411b-a164-d36cf54f0787).
The workaround i found uses `updateColumns`. As @michelengelen said, this method doesn't allow to delete columns so I used `setColumnVisibilityModel` to hide the one I want to hide / delete.
I did use key prop as a get around (sorry for the late update). But I still think it's not ideal, if first load is that fast it seems possible...