Performance made me disable the extension

[Rand-Random]

I love the idea, and jumped the gun when I read the devblogs page. https://devblogs.microsoft.com/visualstudio/experimental-msbuild-editor/

But, sadly the performance opening a csproj made me disable the extension (for now). Its hard to swallow when you need to adjust settings for all csproj files and are forced to wait 8+ seconds for each csproj file.

So, I hope someday only opening a csproj won't cause this performance drag.

If this is a unknown problem, and I can help figure it out the issue, I can provide further information, if you tell me what you need.