I am experiencing the same performance issues, it doesnt matter how much rows there are in the datatable. The number of columns is the main problem, they generate way too big responses. When i used a table with 20 columns, the datatable generated 4MB responses :S. I think this issue is critical and should be fixed in 3.3.0 release
I have the same issue but with the total number of rows. A table with about 100 rows will return a ajax response with about 3MB of payload!
The performance of extendedDataTable in 3.3.0.GA is a showstopper.
1. Is there any way of letting the client do the sorting/filtering without going to the server with an ajax call?
Someting like this: