Network delay: Not if you are playing offline/have prediction enabled/aren't remote-accessing some desktop.
Electricity: I'd be stumped to answer how exactly that should happen honestly. Even if we assume the electricity in your house is unstable (is that even a thing), your PSU should either: handle that - or: **** the bed. But again, no idea. Sounds way out there either way. I guess you can just use your laptop on batteries and check if the problem persists.
Another possibility is the monitor... Did you use the same monitor for all systems? But yeah, again, it's so unlikely that your three mice and computers have the same problem that the most likely answer is you yourself are the problem... somehow. Did the problem only start recently? Did you switch to WIN10 or something? Try without a keyboard connected at all. The DeathAdder specifically has an internal buffer feeding problem where it misses every other USB poll, or so a lot of people have reported on here. But whether you would actually notice that as delay - let alone at random times? Plus, the other mice don't have that problem, so yeah...