Hi Zafer,
Thanks for contacting Syncfusion support.
We have analyzed your query. To resolve this, we will provide virtual scrolling option to load the data based on the page size without buffering the entire huge files. It allows you to load the file details while scrolling and helps to improve the page rendering performance.
We have added virtual scrolling to our feature request We will implement this feature in any of our upcoming releases. We will update you once this feature has been implemented.
Please let us know if you have any queries.
Regards,
Karthik R