@Egor-Artemenko said in Lags during up and down navigation with arrows on large PHP-file, 500 Kb, 16k lines:
Another tweak is detecting fast actions
Extremely unlikely.
The core design of Notepad++ and Scintilla is single threaded.
Once an “event” should do some computation this computation is happening and even if it is unexpectedly long there is no way to abort it.
With “fast actions” which is practically 2 quick events the 2nd event cannot influence the 1st event.