Homeplugs (ethernet over power) are fine for some things, but they add so much latency to the network.
Wired is so much better.
Ok, switch in the shed/office into switch in the garage, switch in the garage into powerline to switch by the router.
Run cable from the garage to the switch by the router and remove 1 of 3 powerline plugs, so yeah just removing a single plug helps so much