Delete in Grid very slow with FF 57 (Quantum)

[spassig]

We have an ExtJS (6.5.0) Grid with 2.000 entries. When we delete all entries the following code is executed:

      store = @grid.getStore()
      store.suspendEvents()
      store.setData([])
      store.resumeEvents()
      @grid.getView().refresh()

(suspend/resume is a try from https://www.sencha.com/forum/showthr...emove(records) )

The

      @grid.getView().refresh()

line takes more than a minute to execute (Mac Book Pro 2016). In FF 56 (or any other browser) it's no problem.

[evant]

Try wrapping your code with:

Ext.suspendLayouts();
store = @grid.getStore()
store.suspendEvents()
store.setData([])
store.resumeEvents()
@grid.getView().refresh()
Ext.resumeLayouts(true);

[spassig]

Thanks for your answer. Unfortunately it doasn't help.
all the best