All my classic zettelkasten notes I have taken are stored i…

All my classic zettelkasten notes I have taken are stored in a folder of plaintext files.

To search this I sometimes use houdahspot. In the past I've used the Archive (which I like) to take notes and connect.

I would like to use the graph visualization of obsidian (markdown), but I have too many notes and the graph always chokes.