We have three Deco S4's around our one story house. One at a high point in our living room used as a router connected to our modem. The others are in two bedrooms right next to the other. There is quite a lot of walls and other stuff separating one of the S4's in the bedroom from the Living Room,so there is a lot of interference. The download speeds are great, but when it comes to lag spikes in games like Valorant and Warzone, where you can see intricate Network Stats, it jumps up to 300 from 32 every few seconds. Is there a chance that adding more S4's could solve the problem, or maybe changing the Modem?