Feature Request - Optimize "Install Missing Custom Nodes" Populating Time

Currently it seem that when selecting the Install Missing Custom Nodes, it loads the entire Custom Nodes list and then filter out to only show "Missing". There are currently 3k custom nodes and there will be more in the future, so I can only think it'll take more time to load this option later on.

It would be nice if it only fetch the actual missing custom node when selecting that option. I often try new workflow and there are 1-2 new custom node to try and it starts to take a while to load.