Even if I only have 3 rows which are updated each call, the processing gets slower and slower each update. Grid is only updating those three rows and no additional rows are added. The difference between processing the first UpdateFromXML and 200th update is about 1 to 2 seconds. More if there are more rows to update. This makes the browser freeze during the update process. Is this a known issue? The memory consumption seems to be OK and no additional memory is acquired but for some reason it just gets slower.
Is there some internal buffer or cache that is making the update process to slow down?