low is relative. I don't think anyone would use elixir for systems with HARD realtime needs like stepper motors, industrial automation or other such projects. but there's also low in terms of perceptual latency. I use elixir at my startup and the baseline performance is amazing for saas applications. 300ms of network latency is slow by hard realtime standards but is more than sufficient for a user navigating a app or website. being able to achieve that at scale is an absolute superpower that would be significantly more work (and machine resources) to do in ruby or python.
