[khqc]

Probably because old software (e.g. emacs) feels a lot faster than new software (e.g. vscode) on the same hardware, that and nostalgia

[jabradoodle]

Honestly vscode is quite snappy and I often seem to run into issues with Emacs performance.

For a long time printing a largeish string to a buffer would crash Emacs, and it still lags vscode in opening large files in my experience.