Of course. However, I’m not sure this will achieve the desired speedup, because part of Resharper still needs to run in-process to integrate with Visual Studio.

Of course. However, I’m not sure this will achieve the desired speedup, because part of Resharper still needs to run in-process to integrate with Visual Studio. And it integrates a lot. And I’m sure at least some of the APIs it uses are actually not asynchronous. So, only limited room for improvement.