Sublime Text's performance highly depends on the line length of the loaded files. A 5 MB JSON file as one long line can kill ST, but neatly formatted in 50k lin

Sublime Text's performance highly depends on the line length of the loaded files. A 5 MB JSON file as one long line can kill ST, but neatly formatted in 50k lines is no problem. For this reason, I generally use Notepad2 to handle larger text files (5 to 300 MB).