Not sure I understand the achievement.

That type of rendering is more about GPU load than of anything React (DOM) related.

As of DOM rendering of comparable number of nodes then this:

https://terrainformatica.com/2019/07/29/bloomberg-terminal-h...

900 elements re-rendered on each frame of kinematic scroll (60 FPS) with 10% CPU load. And 250 FPS max on typical high-DPI monitor.

In other tests underlying recordset is updated with 25 FPS frequency. The view observes and updates screen for visible rows - 2% CPU for that.

All that in main GUI thread so I do not understand the excitement.