FSharp.Interactive.Session.bufferEvent causing UI delays that are 5 > x >= 2 seconds #6077

From my UI delays:

This function is the source:
https://github.com/Microsoft/visualfsharp/blob/fead0aac540485683f694524eadad79983ec28d9/vsintegration/src/FSharp.VS.FSI/sessions.fs#L80-L124

I believe the whole thing runs on the UI thread which isn't inherently bad, but a >=2 second delay is a bit much.