When you run the sample, please unfold Recording Server - Hardware - - Cameras - and click Settings tab. You will see the settings of the camera including FPS setting and you can also change it.
2+3.
The Configuration API does unfortunately not support configuration of rules. Good news for you; Milestone is now working on the Configuration API, so the support for rule configuration will be in 2020 R1 or 2020 R2.
Disclaimer: This is planned new functionality of future MIP SDK versions. This plan is subject to change without notice.