I wrote a blog post where I reverse engineered Sublime Text's fuzzy match. One of my test cases was a C file with single line functions. I think there were about 16000 lines. Both Sublime and my algorithm ran in under 100 milliseconds.

Atom also has a fuzzy match algorithm. It hard froze the editor for over 5 seconds while matching.

Atom also has some of the highest latency when typing. By a large margin. https://pavelfatin.com/typing-with-pleasure/

So no. Atom is still a slow piece of shit. It's not a meme. It's a verifiable fact.

Sorry.