Would a Matter controller, plugs, and other stuff take some of the load off my Wifi router?

I’ve been experimenting with Wi-Fi enabled plugs, bulbs, and door sensors but my relatively weak WiFi router and internet connection seem to be struggling with all the extra devices. Not great when I work-from-home AND my kid wants Bluey AND I want to be able to control my lights, etc.

I’m thinking of picking up a Matter Controller (probably and Echo Show 8) on Black Friday, and some Matter-compatible plugs/bulbs. If I switch to Thread (or just Matter? Is the Thread part implied?) smart-stuff, will that take the load off my router and internet connection?