Improve WPF DataGrid performance
There are a few options you can turn on to help you on your DataGrid object
EnableColumnVirtualization = trueEnableRowVirtualization = trueThese two are the main ones I think might help. Next try making your binding async
ItemsSource="{Binding MyStuff, IsAsync=True}"And lastly, I've heard that setting a maximum height and width can help even if it above the max screen size, but I didn't notice a difference myself (claim had to do with auto size measuring)
MaxWidth="2560"MaxHeight="1600"Also never put a DataGrid in a ScrollViewer, because you will essentially lose virtualization. Let me know if this helps!
Check if you have property ScrollViewer.CanContentScroll set False.Setting this property to false disables the virtualization in a way will degrade the performance of your Data-grid. For more clarification refer this CanContentScroll
Set the DataGrid.RowHeight value and that will make a huge difference.
I know this is a really old question, but I just came across it, and this was the biggest difference on my end. My default height was 25.