You can try the following workarounds to speed up the compile.
1.Put the obj directory for each project on a RAM-disk.
To force Visual Studio to write the obj files to the RAM Disk, you must manually edit the project file
in an XML editor (or notepad) to add the BaseIntermediateOutputPath key.An example is shown below.
Applying this to all of your projects , you will find you have speeded up your compile speed.
2.Build Projects in Parallel, you can manually trigger msbuild yourself as a Visual Studio external
tool to compile your solution in parallel.
3.Try to change almost all of the “Copy local” settings in all the referenced DLLs from the default True
to False. This will prevent the referenced DLLs to be copied to the output folder of each project. And will
also speed up your compile speed.
More detail information about speed up Visual Studio Builds, please refer to :