yup, I'm super annoyed by the running returners...

I actually did a big change about that 1 year & half ago, by tuning the physic inertia ; but it's removed when you play with a high Delay, to compensate a bit the lag. But if you play with low Delay, this kind of returner should be somewhat easier to ace. And it seems, either with low or high Delay, that they can't do too angled returns, so it might be easy to serve & volley against them (I only played once against this kind of returner, and I s&v'ed extremely easily).