I've heard that smart home hubs get slow when you add lots of devices. Will Alva Link lag?

This is a real problem with general-purpose smart home hubs. We've seen the forum threads — users reporting 5–10 second delays for simple actions, devices timing out, entire systems grinding to a halt once you pass 30-40 devices.

Alva Link is fundamentally different because it's not a general-purpose hub. It doesn't manage your lights, your doorbell, your speakers, or your blinds. It does one thing, energy optimization, and it does it with purpose-built processing.

The critical optimization decisions (load balancing, fuse protection, device scheduling) all happen locally on the Link hardware. There is no round-trip to a cloud server for time-sensitive commands. When your heat pump needs to throttle down because the EV charger just kicked in and you're approaching your fuse limit, that decision happens on your local network in milliseconds on the device itself.

Cloud connectivity handles the things that aren't time-critical: pulling tomorrow's electricity price forecast, downloading weather predictions, updating the thermal model. If your internet drops for a few hours, Link keeps running on its last known schedule. Your house stays warm, your fuses stay intact.