Faster than Sublime Text? Faster than gVim? Faster than Notepad.exe?
I don't like the word "fast" when it comes to describing the startup time of a text editor. Cold boot startup is a reasonable metric to benchmark reliably.
Some text editor out there is being marketed as "blazingly fast" because of the sole merit of the language they used to write it. But on a personal level, I found it to be as fast if not a bit slower than VS Code.