Lite XL is a small miracle. I can only echo other comments calling it an "open source Sublime Text". It is at least as responsive as Sublime in my tests, and feels even more lightweight. The executable is only 385 kilobytes on Linux, with just a handful of extremely basic system dependencies (SDL, Lua, FreeType, PCRE).
Sublime Text is now getting squeezed from "above" (by VSCode) and from "below" (by Lite XL), while also having serious competition from TUI editors like Helix which are rapidly approaching it in features and performance. I'm not sure how Sublime can hope to survive long term against all of those, considering that Sublime's development pace appears to be by far the slowest of the bunch.
Sublime Text is now getting squeezed from "above" (by VSCode) and from "below" (by Lite XL), while also having serious competition from TUI editors like Helix which are rapidly approaching it in features and performance. I'm not sure how Sublime can hope to survive long term against all of those, considering that Sublime's development pace appears to be by far the slowest of the bunch.