Hi,
I’m afraid this is not possible, there is no sorting filter available as of now for the live results.
I usually recommend a customization or a custom code where possible, but this is a lot more complicated than that. The only way to achieve this is to fully implement it from top to bottom, which unfortunately takes more than a few lines of code.
It will be available though in a later release, as it is a planned feature within the filters section rework.