I have Fortnite equipped, but it doesn't seem like all of Fortnite's traffic is being routed through Mudfish's servers.  In some matches the Realtime Traffic graph will show active rx/tx throughout the whole game and my ping will be perfect.  In other matches, it shows 0 rx/tx intermittently like in the screenshot attached and I get 70+ ping (which translates to almost a half second delay), similar to if I wasn't using Mudfish at all.