ConEmu in your Visual Studio External Tools List

Add ConEmu to your VisualStudio Menu -> Tools -> External:

Visual Studio Menu -> Tools -> External
VisualStudio Menu -> Tools -> External

By copying the line from ConEmu's shell integration to get:

Command: C:\Program Files\ConEmu\ConEmu64.exe
Arguments: "{PowerShell} -cur_console:n"
Initial Directory: $(ProjectDir)

ConEmu in the Visual Studio ExternalTools menu
ConEmu in your Visual Studio ExternalTools menu

Your CPU vs your code. Two short lessons in software performance

There’s a great Q and Answer at dijkstra-path-finding-in-c-is-15x-slower-than-c-version which starts with C++ code at 2ms vs C# at 38ms; and finishes with C# at 2.8ms.

On similar lines, the solution to this riddle — why-does-net-core-2-0-perform-worse-than-net-framework-4-6-1 — has nothing to do with the framework; it results from the slower performance of 64bit code compared to 32bit.

Which just goes to confirm what you might have suspected;

VMs aren’t that slow; and
For best performance, you have to understand your VM, and your language, and your O/S, and ultimately your CPU.