> Performant long lines.
I dread scrolling through a mysqldump in Emacs.
You can edit gigabyte-large files with no trouble vlf.el https://github.com/m00natic/vlfi – though it's a bit of a separate universe, you have to use vlf-occur instead of occur to find matches over all gigabytes of the file
;; To have it offered when opening large files:
;; (require 'vlf-setup)
;; When such files are detected, the command `so-long' is automatically called,
;; overriding certain minor modes and variables with performance implications
;; (all configurable), in order to enhance performance in the buffer.