Variable: lazy-lock-stealth-lines
lazy-lock-stealth-lines is a customizable variable defined in
lazy-lock.el.gz.
Value
100
Documentation
Maximum size of a chunk of stealth fontification.
Each iteration of stealth fontification can fontify this number of lines. To speed up input response during stealth fontification, at the cost of stealth taking longer to fontify, you could reduce the value of this variable.
Source Code
;; Defined in /usr/src/emacs/lisp/obsolete/lazy-lock.el.gz
(defcustom lazy-lock-stealth-lines (if font-lock-maximum-decoration 100 250)
"Maximum size of a chunk of stealth fontification.
Each iteration of stealth fontification can fontify this number of lines.
To speed up input response during stealth fontification, at the cost of stealth
taking longer to fontify, you could reduce the value of this variable."
:type '(integer :tag "lines"))