This is not a duplicate of How do I open multiple instances of Visual Studio Code?.
My previous question, How can I make Visual Studio Code's auto-complete suggestions appear more quickly? explains my problem.
I was using VSC with the PlatformIo plugin for embedded development for a few months with no problem. Then I started on Flutter/Dart and soon had a problem with auto-suggest being really slow.
It could be that I just loaded a duff plug-in (I am adding them back, one by one, to see if/when it "breaks"), but ... I am considering doing all development in VCS, so as to have a single IDE.
I am currently using Eclipse for C/C++ and PHP, WebStorm for AngualrJs and PyCharm for Python.
I had previously used Eclipse for everything, and had a different copy of Eclipse for each language, each with its own plugins.
Since I will be developing in 4 or 5 languages, even if I don't hit a problem as bad as I just did, adding plug-ins for that many languages into a single IDE will inevitably slow things down.
So, question: can I have multiple installs of VSC, each with its own plug-ins, and launch them separately?