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I'm prototyping Vaadin for use in our application but I'm hitting a performance problem with tables. If I have ~200 products in the result set and they are divided over a number of categories (and each category having a detail-table) I end up with a wall-clock-roundtrip of over 30 seconds(!).
The category header is a HorizontalLayout with two labels and a Table and the category products is a table. The number of items in the category header detail table is usually 1-3 and the products in a category 1-5. The total number of tables is around 300 which is sub-optimal but is there any way of optimizing performance (fixing withs etc)?