We are trying to chart a trend for a year's worth of data (approximately 340 points) over 3 series, so a total of ~1000 points on the chart.  Rendering in the Telerik MVC Extensions took less than a second in Chrome, but the JavaScript initialization takes 5-7 seconds with the new controls.

We primarily work with IE8 (hopefully changing in the next 6 months...).  A few hard numbers:
- Telerik Charts rendering the above scenario: 3 seconds
- Kendo UI charts rendering the above scenario: Ran for 3m30s, threw out of memory error.

Is there any way to increase the rendering performance of the charts, other than decreasing the number of points?  If not, does Telerik plan on bringing back the old way of rendering the charts?  This is really, really poor performance.

Hello Tom Jacoby,

Thank you for reporting this issue.

This problem is already fixed and the fix will be included with the next official release of Kendo UI.

Greetings,
Hristo Germanov
the Telerik team

Thank you for getting back to me so quickly. Is there a timeline for the release of the next version?  If it will be a while we will need to start converting our charts back to the MVC Extensions.

Hi Tom Jacoby,

The next official release is Q2 SP1 and it is scheduled for the middle of September. But it is available only for customers.

Greetings,
Hristo Germanov
the Telerik team

EDIT: We will submit a ticket requesting a patch.

Hello Tom Jacoby,

You can open a support ticket or you can simply download the internal build of Kendo UI.

Greetings,
Hristo Germanov
the Telerik team