What Aokromes said is true.
I will tell you any advices in case you didnt know it:
- Dont use cmake if you only changed any lines in any files. Every time that you use cmake, compilation will take more time to compile.
- Dont clear proyect in visual studio if you didnt add new files in the project or it will compile everything there.
- You can disable tools (map extractors) of source in cmake so it wont compile with the project and it will be faster.
Regards