Nighthawk MR60 Satellite Ping spikes when gaming

Hello. I have an MR60 Nighthawk Mesh setup in my house. I have the main router hooked up in my office, and my gaming PC across the house. The PC requires Ethernet, so I opted to place one of the satellites on my desk there, and hook a switch to the satellite, so both my PC, my wife's PC, and my work PC can all connect via ethernet. Since I've set it up this way, I've noticed there is a periodic spike in latency. I ran ping -t 8.8.8.8  for about an hour on my second monitor while I was playing a game with my wife, and noticed the lag spikes in game correlated to sudden jumps in ping on my command prompt. This led me to think I was having internet issues, but I wanted to double check, so I ran the same command, just using my router IP to see if the ping spikes originated in the house or outside. The same ping spikes happened when pinging the router, leading me to believe that the actual issue is somewhere between the satellite and the router. Does anyone else experience this issue, and possibly know anything that can be done about this? 80% of the time, it's perfectly fine, just this 2 or 3 second spike in latency is particularly annoying when playing games online.