# Julia in VSCODE: IntelliSense is very slow for code complete

**URL:** <https://discourse.julialang.org/t/julia-in-vscode-intellisense-is-very-slow-for-code-complete/98416>\
**Category:** General Usage\
**Tags:** question\
**Created:** [May 6, 2023, 8:35am UTC](https://discourse.julialang.org/t/julia-in-vscode-intellisense-is-very-slow-for-code-complete/98416 "2023-05-06T08:35:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![lionisxn](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lionisxn/32/37989_2.png) [@lionisxn](https://discourse.julialang.org/u/lionisxn)\
**Post date:** [May 6, 2023, 8:35am UTC](https://discourse.julialang.org/t/julia-in-vscode-intellisense-is-very-slow-for-code-complete/98416/1 "2023-05-06T08:35:49Z")

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I just switched from Atom to Vscode, and found that the code complete performs well when editing a script, but acts very slowly in the case of editing a package. Any suggestion on how to improve it ？

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**Author:** ![SteffenPL](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/steffenpl/32/206270_2.png) [@SteffenPL](https://discourse.julialang.org/u/SteffenPL)\
**Post date:** [May 6, 2023, 9:45am UTC](https://discourse.julialang.org/t/julia-in-vscode-intellisense-is-very-slow-for-code-complete/98416/2 "2023-05-06T09:45:50Z")

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Mh, so far, I did not notice this myself too much. Is the package you are talking about very large?

One difference is probably that for external packages, the [SymbolServer](https://www.julia-vscode.org/SymbolServer.jl/dev/) is used, which has caches of most packages. Maybe that is the reason for the difference…

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**Author:** ![lionisxn](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lionisxn/32/37989_2.png) [@lionisxn](https://discourse.julialang.org/u/lionisxn)\
**Post date:** [May 6, 2023, 11:04am UTC](https://discourse.julialang.org/t/julia-in-vscode-intellisense-is-very-slow-for-code-complete/98416/3 "2023-05-06T11:04:58Z")

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Maybe you are right！But I still don’t understand why Atom is able to behave very quickly and accurately.