Hi @taoy,
please make sure you install the latest version of the SonarCFamily plugin and use its latest version of build-wrapper, which is currently 6.6.
Why are you surprised by this? Isn’t it already your build time?
How much time do you get with how many threads?
In the latest version of SonarCFamily analyzer we support Incremental Analysis, see the related section in this post: C++ developers now benefit from more efficient analysis and deeper Core Guidelines coverage. I would invite you to test it.