What is the BEST ONE Connection?

Hi. I assume That Quickconnect is the ONE connection that works from everywhere through Everything Easy…

Please Assist. What is the alternative ONE connection that is Quicker. I use tailscale. Within the office I just connect via Ip Address.

But things are not working as environments changed. Out of Wifi. 5G, SYnology Sharesync.

So Yes Im using Quickconnect now. And forced to use Taiscale As with Tailscale I can access files via Finder on mac.

But is reaaaal slow.

I think the solution is VPN>? I dont know VPN? Id this is the solution - How does it work? Difficult to setup?

And does it cost Money. I have about 20-40 Connections running currently