I m not saying “Do not use Real time” use it, It will allow you reduce latency.
about the CPU governor , I have a link I wrote that 
but you can read some of this here
It will increase the use of energy and will make your fan work a lot, but it is not something like “Force” the CPU to do something that it can’t do. also it is mandatory for instance, to run modern games on Linux.
edited: CPU frequency scaling - ArchWiki