Will it be possible to dynamic load data into the grid as it was in old versions?
Sample https://dhtmlx.com/docs/products/dhtmlxGrid/samples/14_loading_big_datasets/11_pro_prefetch.html
There is an in-built lazy-loading functionality allowing to render the data by visible portions and increasing the performance of the grid.
If you have problems with the performance of the grid loading/rendering, could you please, share the details about your using dataset, so it could be analyzed, and the probable solution might be suggested or added to a roadmap.