[Development] Qt3D overhauls

[Massimo Callegari]

Hi devs, can someone at KDAB please spend a few words about these "Threading archtecture" and "Frontend/Backend node sync" overhauls mentioned in the 5.14 changelog?

I'd just like to know if we might expect performance improvements and, if so, is it possible to see benchmark results before/after the overhauls?

Thanks in advance and regards,
Massimo