I switch between Visual Studio, Xcode and VSCode pretty much each day for C/C++ development, and out of those VSCode is by far the slickest to use (and also the most flexible). I'm also not exactly a newbie, having started to code in the mid-80s. I also tried out all the IntelliJ IDEs, and for those I cannot understand how people can put up with the UI sluggishness :)

Also: even Vim (which I often use for quick text editing tasks on the terminal) can get embarrassingly slow on large files if you start installing extensions.