I’m not an expert, but have used a real time kernel for scientific research, using rtxi. My understanding is that the real time threads allows the computations to occur in a deterministic amount of time. This is necessary if you want to quickly respond to changes in personal membrane voltage with injections of current, and don’t want it to sometimes take longer to calculate how much current to inject.
If you’re doing it over an app, without the chance for the person you’re dumping to respond, I see no risk of things turning nasty