Question Visual Studio Code Intellisense not working.

Visual Studio Code Intellisense won't work.
It sometimes works but it takes so long for it to work.

I have tried solutions but they won't work.
I also read some threads but it did not help me.
I have tried .NET framework 4.71 and 4.6 and .NET 5.

I use the C# extension, Unity tools extension, Debuger for unity and Unity Snippets.
I tried a few diffrent snippets but they all don't work.

Is there a working fix and is there any free alternative ide.
And I don't want to use Visual Studio I prefer vscode.