Hello,
we just replaced one of our screens using Table with one using DataGrid. Nothing else has changed. The time to display window (after navigating in the menu or using tabs) has grown by ~300%. Looking into Vaadin log produced to console, I can see two metrics has increased:
Original (with Table):
handleUIDLMessage: 279 ms
Processing time was 598ms
New (with DataGrid):
handleUIDLMessage: 1633 ms
Processing time was 1769ms
You can see, that the performance regression is very noticable. We use the latest CUBA - 6.6.3
This all is rather sad, because you advertise DataGrid as being better performing…