I’m not even bothered by the random squiggly lines. Intellisense in Visual Studio was so slow I basically had that problem already. I’m more concerned that the code completion in VSCode flat out doesn’t work at all.
I found some things to change to get Visual Studio’s Intellisense to run a bit faster, so it’s not as bad as it was. But it’ll never be as snappy an editor as VSCode, if only it’s code completion would work.