Visual Studio Code Intellisense is very slow - Is there anything I can do?

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I'm using VS Code and it's wonderful is all areas but code completion, where it is usually just too slow to be of any use. This example shows how long intellisense took to to find a local variable, and this is only after it was prompted to do so after I hit ctrl+enter.

I've not been able to find a solution to this as of yet, so I am here to ask if anyone else has had a similar issue and ask how they have overcome it.

Visual studio code intellisense is very slow · Issue #38409 , I can give you list of extensions although i understand there are many Visual studio code intellisense is very slow #38409 It fixes itself when it shows me an error at the top of the page that alludes to something about Chrome crashing or for some time whenever doing a typescript intellisense operation  Gear up with serverless framework, containers, and AI/ML with this VS Toolkit. Download the VS Toolkit from AWS and work with the latest cloud technologies.

The problem might be with wrong setting configuration. You might want to make sure these setting are on:

Controls if suggestions should automatically show up while typing

"editor.quickSuggestions": {
  "other": true,
  "comments": false,
  "strings": false
},

Controls the delay in ms after which quick suggestions will show up

"editor.quickSuggestionsDelay": 10,

Intellisense Extremely Slow · Issue #53541 · microsoft/vscode · GitHub, If you can share the log, I can also take a look to see if anything stands Info 30 [​12:25:36.178] Starting C:\Program Files\Microsoft VS Code  I'm using VS Code and it's wonderful is all areas but code completion, where it is usually just too slow to be of any use. This example shows how long intellisense took to to find a local variable, and this is only after it was prompted to do so after I hit ctrl+enter.

My answer's for c++ but still kinda related.

I'm using the C/C++ extension from Microsoft, and when I switched its Intelli Sense Engine setting from Default, with "context-aware results", to Tag Parser, with "'fuzzy' results that are not context-aware", it immediately started showing IntelliSense options instead of delaying for 5+ seconds.

So maybe check the particular options of your language's or environment's extension(s).

Is Your VS Code Extension Slow? Here's How to Speed it Up!, What can you do about it? A lot actually. Stay with me to see how you can help your favorite extensions load fast! One possible cause is the  Visual Studio Intellisense not Showing Events [duplicate] The VB equivalent of this C# code: myObject.SomeEvent += SomeMethod; is this: AddHandler myObject.SomeEvent, AddressOf SomeMethod If you type the AddHandler keyword then Intellisense will show you available events. In the case of the C# code,

Extremely slow intellisense menu? No extensions loaded , I disabled all of my extensions, but the intellisense menu doesn't show up for a good What every GitHub user should know about VS Code - GitHub Satellite 2020 So now I'm stuck with just the one instance I've got - I can never make more  Visual Studio Code IntelliSense is provided for JavaScript, TypeScript, JSON, HTML, CSS, SCSS, and Less out of the box. VS Code supports word based completions for any programming language but can also be configured to have richer IntelliSense by installing a language extension.

IntelliSense in Visual Studio 2019 is responding too slow causing , Does the issue still repro after updating to 16.0.0 Preview 4? 4. Could someone help us to share a ETL trace by the solution: Please follow the instructions below,​  Welcome to Visual Studio. :P As a fellow student, I definitely do recommend Visual Assist -- they've got student licensing options that are quite affordable (that's what I'm signed up for right now), and VA's done a great job of keeping up with UE4 with its auto-completion (intellisense) features.

Intellisense slow to respond, Intellisense takes too long to suggest the type Foo after “new” and if I press tab before the In VS 2017, even if it is slow to suggest, it will catch up and autocomplete. to the text editor until intellisense has done what it needs to do, but 2019 does not. 0 VS 2019 16.0.3 Intellisense is super slow on C++ code for things like  Why is Visual Studio Code (with the ‘golang’ extension) so very, very slow? ANALYSIS: I am running Windows 10 on a desk top PC. Processor: Intel(R) Core(TM) i3 CPU 540 @ 3.07GHz 3.06 GHz Installed Memory (RAM): 4.00 GB (3.87 GB usable) System type: 64-bit Operating System, x64-bassed processor. I am running Visual Studio Code Version 1.12.1

Comments
  • Any solution to this problem? I facing the same. VsCode v1.33 and happens with all extensions disabled as well.
  • Same issue. With v1.33, it got really worse on my end. I'm using Windows 10 Pro 64bit on a 250GB SSD, 16GB RAM and i5-4460 CPU. I don't think it's a hardware issue as it seems plenty imo. Tried complete fresh install after deleting the appropriate files at %userprofile% and %appdata%, same issue. Disabling all extensions doesn't help either. If enabled, all extensions' jobs are delayed way longer than what's shown in the screenshot.
  • I had better luck with the new Microsoft Python Language Server. This may be a stupid thing to suggest, but make sure you're using that. And try a completely fresh project as some settings may be defined in the workspace file, not the %userprofile%
  • I have this issue too. It takes 7s to pop up. I have a brand new laptop and it is worse than on my old laptop which is really old and slow.
  • I also found the "C_Cpp.intelliSenseCacheSize": 0,setting useful
  • @kevinf Good find! It doesn't show up in the Settings... code.visualstudio.com/docs/cpp/…