If you have 2000 nodes and you generate 2000 updates a second, you will never have more than 2000 things to update per frame, as you only have 2000 nodes. Thus

If you have 2000 nodes and you generate 2000 updates a second, you will never have more than 2000 things to update per frame, as you only have 2000 nodes. Thus even at second 2 or 3, you will still only have 2000 things to updates, as the older updates are now outdated and has been replaced by something more recent. If you updates only 500 of them, that will means that in average, it will takes 4 seconds before you see the most up to date information for a node.