I understand your concern regarding the performance issue when using the setCellValue method in a large grid. To avoid the excessive executions of cell renderer for each cell update, consider implementing a more efficient approach. One possible solution is to utilize a data structure that stores the updates separately and then applies them to the grid in a batch process. Doing so can minimize the number of executions and significantly improve performance. Additionally, suppose you need further assistance with implementing this optimization or any other aspect of CRM assignments. In that case, you can seek reliable CRM Assignment Help services for expert guidance and support.