cpu utilization increase in IE8

Hello

layout, grid, window is used.

continue to move the mouse to the output grid from ie8 list the cpu utilization will continue to increase.
this phenomenon does not occur in ie9 or chrome.

And at the click of a mouse, the reaction rate will drop significantly in the window using the window
This also can not not happen. Ie9 or chrome

Answer Thank you.

Unfortunately the issue cannot be reproduced locally.
Please, provide a complete demo with exact steps to reproduce the issue.
Here you can find a tutorial:
docs.dhtmlx.com/doku.php?id=othe … leted_demo