When Designer compiles the service locally, by default, it also rebuilds other classes in the Service Development Project. If you notice slower performance when you save the service, you can prevent Designer from rebuilding the other classes by updating the workspace preferences. Note that sometimes it is only the first attempt to save a C/C++ service that takes a long time and future compilations might go faster.

If you want to turn off the rebuild of other classes in the Service Development Project, select Window > Preferences > General > Workspace and clear the Build Automatically check box. This preference affects all projects in the workspace. If you turn off automatic builds, you can manually force a build by selecting Project > Build Project.