Every time I press tab, enter, delete, etc., it's very laggy and not smooth. Is it possible to optimize the algorithm, or try to use rust to implement the algorithm?

[HughLink]

Proposal

Other information

[yzhang-gh]

It is not because the current implementation is slow but is because how VS Code processes key inputs. For your case, it is very likey that you have other extensions that may interfere with this one. You can check this with the command "reload with all extension disabled" and enable only this one to test.