Obvious question that I couldn't find any answer to: How does the latency compare to existing solutions?

I currently use RealVNC and Steam's own VNC thing to connect to a desktop computer in the same city as where I'm connecting from. RealVNC is much laggier than Steam, which seems optimized for latency. The ping latency is something around 10-15ms (at peak hours, otherwise less), but somehow RealVNC manage to still be kind of laggy, at least compared to whatever Steam is doing.

The use case is doing game development (in Unreal Engine) via a shitty laptop, connected to a proper desktop computer.

So how would RustDesk compare to RealVNC/Steam here?