For sure the first priority if not done already is to make sure that you’re on the latest firmware update.
I’m not sure how you can change the wifi in your home. The only obvious thing is to use the 5 GHz bandwidth instead for your phone and laptop and such, if you’ve been using the 2.4 GHz bandwidth from your router for them. That’s because the 2.4 GHz is also the bandwidth use for communications on the More, just to minimize any possible interference. But if you have lots of wireless home devices like security cameras and door locks and wireless thermostat and such, most of those home wireless devices operate strictly on the 2.4 GHz band only, so you don’t really have an option to change those to a different band.