If you have a look at our demo (https://www.ag-grid.com/example.php#) with 100K rows, and you try it in both the latest Chrome and IE11, you will be able to see quite a noticeable difference in performance.
We use all the techniques imaginable to squeeze performance in every browser, but unfortunately, IE is far behind in terms of performance.
Note that we have already added performance improvements so our latest version is fastest that any previous one. We are also always on the lookout for new ways to make IE11 perform even better.
We do have a ticket that we keep open and that we use as a placeholder so you can see if there are any more improvements coming up.
You will be able to do so in our pipeline (It will be in the 'Next Release' tab if we are planning further improvements)
|Performance improvements||AG-1211||IE 11 Performance improvements|
Is there anything I can do in my end to make it faster in IE11?
Maybe... What we recommend is, open our demo in IE11 https://www.ag-grid.com/example.php# select the Data Size most similar to yours, and see how it performs.
IF... performance is similar to your end, then probably there is nothing that can be done in your end.
IF... on my end, is way slower! The best is to follow up in our support forum with a reproducible scenario if possible, and we will see if there is anything that can be done to improve performance