C++ Autocomplete is slow on VSCode for mac development environment

Auto complete is not automatically turned on for C++ on VSCode. I have a clean VSCode and this extension installed. I can force auto complete to happen by typing Ctrl+space.

My setting contains this:
"editor.quickSuggestions": true.

I googled it. It turns out that we had several related issues:
https://github.com/microsoft/vscode-cpptools/issues/572
https://github.com/microsoft/vscode-cpptools/issues/574

I followed their way, and it turns out that this solves the problem:
"editor.wordBasedSuggestions": true,
"[c]": {
"editor.wordBasedSuggestions": true
},
"[cpp]": {
"editor.wordBasedSuggestions": true
},
"C_Cpp.autocomplete": "Disabled"

Now auto-complete is on, however, there is no color and type hint on the auto-complete, it is just plain English.

Those two previous issues linked here are from years ago. Is there a plan to solve the problem? Want to open this bug to track this.

Start by reproducing the issue in a clean VS Code installation on macOS with the C/C++ extension, then compare automatic completion with the listed editor.wordBasedSuggestions and C_Cpp.autocomplete settings. Read the related issues 572 and 574 before investigating. Done means automatic C++ completion works without the workaround and retains color and type hints.