Why? The data is 1000+, the time span is more than one year, the view response is very slow

The earliest task has the latest time interval of more than one year. The number of tasks is more than one thousand. The response of the view will be very slow. Why? Please help me thanks
Slow events: expand, click on task, scroll wheel…



Gantt performance was improved in the 6.2 version. In the newer versions, the dev team improved it even more. You can see how it works with 2000 tasks and 5-year scale:

If the performance is worse in your project, make sure that you have the latest Gantt version (6.3.1 at the moment) and the smart_dhtmlx_rendering.js file is not connected. Since the 6.2 version, the smart rendering is included in Gantt. So, the connected file overwrites the new improvements with the old ones.

If that doesn’t help you, please, reproduce the issue in the snippet, then click on the “Share” button and send me the link:
Or send me an HTML file with all the necessary Javascript and CSS files.

hi ramil:
Thank you very much for your reply. My version is v.6.1.2 .Try to introduce smart_dhtmlx_rendering.js now

Is this feature professional? I can’t find smart_dhtmlx_rendering.js but i hava dhtmlxgantt_smart_rendering.js . Is there a problem
Thank you