Greetings from Syncfusion support.
We have checked the reported requirement. We have tested the popup opening and closing time in chrome by rendering a simple dataPicker control. It takes less than one second as shown in the video.
We have recorded the video for you reference.
Please revert the below details to proceed further.
- Whether you have rendered the control inside the grid or other component
- Whether you have rendered the multiple control in the page
- If possible share the code snippet or issue reproducing sample