How to reduce project build time in c#?

Question

C++ / C#

Hello. There is a solution with about 15 C# projects. One of them takes about five minutes to compile, which seems too long to me. I tried to search on the Internet how to solve this problem, but I did not find anything, because:
1) ccache is only suitable for C ++
2) MP setting will not work because the computer is dual-core
3) Unity Builds is not suitable, since there are many identical methods in projects and links in projects among themselves
Can someone else suggest a solution?
PS Windows 10.VS 15

Answer 1

The latest studio offers IncrediBuild technology, which is claimed to speed up the build.
In general, MSBuild should ignore unmodified projects, and only build those that have been modified.
You can also read here - https://stackoverflow.com/a/13226077/2822609

Answer 2

There is a suspicion that the computer is very weak ... Projects on SSD or HDD?