So I tried to game twice since update. I described the first experience (First game was red plug, had to quit, second game was fine), and the second time I plugged my pc into my TV and had a direct connection to the router. That was perfect, no lag …
Thanks so much for the swift reply! Vsync is off sadly. I just noticed it patched just now. I guess it would be prudent to try it with the new patch before I seek any other resolutions.