Browser IEhelp wantedseverity: performance
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Description
When a redraw is called for the grid, it calls elementHeight which calls the swap function on the pagination control (even if the controls are disabled by enablePaginationControls: false).
swap then iterates through a list of properties causing a reflow each time.
On IE11 this happens a large number of times effectively stalling the main thread.
There should be no need to call any kind of DOM reads/writes for this if enablePaginationControls == false,