I find Sync more responsive.
I like cranking the size of some text
I’m on iOS and Voyager has many customizations and the ability to change text sizes. I’ve never noticed any issues with responsiveness.
Is this another one of those “well I was on Android and used sync vs well I was iOS and used AlienBlue / Apollo ” comments? Perhaps androids Voyager not as good as the iOS version? I guess it depends on what OP is using for mobile.
I think it’s very important to separate a random “VPN” solution to using Tailscale.
Focusing on Tailscale. Who turns off Tailscale? It is “directly” connecting to your service or app or whatever. That’s the whole point.