PPPooja Priya Krishna Moorthy Syncfusion Team December 9, 2019 01:02 AM
Thanks for contacting Syncfusion support.
We are also facing this performance issues in EJ2 Gantt control, for this we already logged a feature report as Virtual scrolling support in Gantt. Using this support we can load large tasksets without any lag.
The status of this feature can be tracked from below feedback link.