Sublime is the only non-ancient editor I've used that is actually snappy, I can't perceive any lag. It feels like native software used to feel, yet looks half decent.
Vscode is slower, with both input and general UI lag. It helps to turn off hardware acceleration, but only a little. Luckily, you get used to it. Unless you go back to Sublime/Vim/Nano for a while, you stop noticing it.
Then there's the "you should be using"-ones...
* Visual Studio. Syntax highlighting takes a second or two when opening "large" files, input latency is bad, sometimes it takes longer to save a file than it does to compile your project, which now runs without your changes.
* XCode. Syntax highlighting works on Tuesdays, input latency is horrible. Randomly need to restart when certain features just stop working.
* Android Studio. Input and UI latency, needed 5 out of my then 8 gigabytes of RAM to load an empty project, had to close most other programs when working on a medium sized app, including my browser (Slack, Email, Teams etc).
* Goland. I've tried using this on both Windows and Linux, but I've never gotten anything to compile consistently. Indexing takes minutes, CPU usage randomly spikes, memory consumption constantly climbs... it just seems to eat resources doing nothing.
Sublime is the only (non-Vim/Emacs) editor I've used that takes my time, room/lap temperature and ergonomics seriously.
Are you still using a hard disk drive? I think I was last time I saw a delay that took that long on IntelliJ IDEA.
The "Electron bloat world" editors have been much more snappy in my experience.
Typically the "java world" editors will lag out to the point where tapping on the "File" menu will take 3-5 seconds on occasion. Also they seem to rely on "indexing" and while the "indexing" operating is taking place, the entire editor just slows to a complete crawl.
I've seen this in Android Studio, IntelliJ, Tizen Studio, Eclipse - pretty much anything that's "java world". Apologies for the imprecise nomenclature, but this has been my experience and after so many years it has reached a stage of just low expectations from me whenever I see anything related to these IDEs.