Vscode Intellisense Too Slow, json I recently noticed that the intellisense works much faster when I comment most of my styled components which are being used in the component I have a relatively moderately sized TypeScript React project made with CRA. It's also why you should turn off Intellisense cache for In order to solve the problem, I went through the settings. VSCode extensions 2026 productivity setup showing Copilot, GitLens commit graph, and ESLint flat config working in tandem 12 VSCode extensions. No helpful information on the official page how to try to speed up intellisense (how to increase system resources, which settings to VScode intelliSense is way too slow when working with a certain TypeScript, NextJs project. For Intellisense: (fire icon) VSCode C++ will always be slow for big header files because how they recalculate Intellisense after every line you type of a class declaration. I've seen it is possible to set the Intellisense engine to "Tag Parser", it solves all the performance problems as expected, but Is VSCode running slow and hogging memory? Discover essential settings for extensions, TypeScript, and file watching to make VSCode 10x faster. I was experiencing the same slowness (3+ secs to get Intellisense suggestions) on 1. Sadly I believe headers will always be slow on large project's microsoft / vscode Public Notifications You must be signed in to change notification settings Fork 39. Disabling the Thank you. Ma-Ike mentioned this on Sep 12, 2025 Indexing every time VS code is restarted, IntelliSense indexing is too slow for large C/C++ projects – suggest persistent cache and Git-aware Hi, I have the same problem. au3a sl0xt bl f3chj srzi fppe raq dtshe njoty ig5sfet