Viridian Wildwood terrible performance

This unique map has terrible networking issues. FPS is completely normal, but the network and shader constantly spike whenever I encounter new enemies, then only stabilizes some time after all enemies are killed.

This is miserable to play. It feels like I am constantly jumping between 50ms to 2000ms ping but the chart rarely reflects it. My character would be occasionally slow, then move super fast without my input (like the network is catching up).

There was no performance or networking issues with maps before or after I ran it.