VS is 32 bit, so instead of getting more memory when it needs it slows to a crawl and eventually crashes. I think that the early versions of VS are a bloodbath. VS 2019 just crawled with a small solution just because there were mixed C# and F# projects. I should remember to upgrade always after 2 or 3 minor revisions instead of being a guinea pig for MS. On the other hand some time ago I got a bug in rider where the F# code worked perfectly in VS but didn’t work at all in rider and until today I have rider highlighting some errors in perfectly valid c# code but the build is successful while for resharper that code is fine. And the biggest current pain that I have is that I cannot debug ny tests in VS but they work perfectly in rider. So for now I’m sticking to both of them until rider irons up some small wrinkles.