type-break-keystroke-threshold

type-break-keystroke-threshold is a variable defined in `type-break.el'.
Its value is

(2100 . 10500)

Documentation:
Upper and lower bound on number of keystrokes for considering typing break.
This structure is a pair of numbers (MIN . MAX).

The first number is the minimum number of keystrokes that must have been
entered since the last typing break before considering another one, even if
the scheduled time has elapsed; the break is simply rescheduled until later
if the minimum threshold hasn't been reached. If this first value is nil,
then there is no minimum threshold; as soon as the scheduled time has
elapsed, the user will always be queried.

The second number is the maximum number of keystrokes that can be entered
before a typing break is requested immediately, pre-empting the originally
scheduled break. If this second value is nil, then no pre-emptive breaks
will occur; only scheduled ones will.

Keys with bucky bits (shift, control, meta, etc) are counted as only one
keystroke even though they really require multiple keys to generate them.

The command `type-break-guesstimate-keystroke-threshold' can be used to
guess a reasonably good pair of values for this variable.

You can customize this variable.