Thanks for contacting Syncfusion’s support.
Query 1: Performance Issue
We have analyzed your query and if you render the Grid with large data with large number of columns, it will take little bit time to render the Grid control and applying style for cells in the selected columns. So, we suggest you to enable the paging feature of Grid control to avoid this kind of performance issue.
Query 2: the memory consumption can get quite high
Could you please provide the following details?
1. Share your server machine configuration details.
2. Share the memory consumption logger information.