Autocomplete makes notepad++ unable to keep up with typing.

[bartwe]

Description of the Issue

With 'Enable auto-completion on each input' enabled in settings, in a small (20 line, no line longer than 80 chars) textfile (.txt extension) the program doesn't keep up with my typing, instead blinking an empty context menu, catching up a second later.
(i9-9900K at 4% cpu usage, 20GB ram free)

Steps to Reproduce the Issue

1. ensure 'Enable auto-completion on each input' and 'Function and word completion' are turned on in settings.
2. create a new text document.
3. type 'hello world' at at least 200 CPM

Expected Behavior

To see the editor display the characters as i type them

Actual Behavior

See the character H appear, have a an empty (context menu?) box flash for a second, then the rest of 'ello world' appears.

Debug Information

Notepad++ v7.9.2 (64-bit)
Build time : Dec 31 2020 - 04:01:34
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS Name : Windows 10 Pro (64-bit)
OS Version : 2004
OS Build : 19041.630
Current ANSI codepage : 1252
Plugins : mimeTools.dll NppConverter.dll NppExport.dll

[wqpalmer]

I just updated NP++ and am also experiencing this issue. It seems to be related to auto-complete, but also the speed at which I type. ~100 WPM, so I suspect I'm also at >= 200 CPM.

I had not updated NP++ in between you posting this and today, so I'm wondering if it may be related to one of their recent updates.

edit: just downgraded to 8.1.9.3 (figured I'd go for a release that was before a more significant upgrade), and the problem has somewhat improved. There's still some noticeable lag, but it's a LOT more bearable than the latest revision (though it may also be because I moved from the 32-bit to the 64-bit variant of the program; sorry for the bad troubleshooting! hahaha)

edit2: to further muddy the waters, my issue was fixed after restarting my computer. However, I've been suspicious of Spotify for a while (seems to have a memory leak or something, since my computer always seems to lag after a few hours of playing music and issue happens on desktop client, Windows Store app, and just using the web interface at open.spotify.com. Consider checking to see if a restart and not opening Spotify fixes the issue for you as well... though if also true, then perhaps this is indicative of a deeper issue in Spotify's code... I hope you get your issue solved, regardless!