Last night when I finished a T4, my loading screen was excessively long. After that, sound effects and graphics effects were majorly delayed. I wasn't getting any drop in framerate, just major delay in graphics effects and sound effects. Windows were popping up after a delay as well. It seemed like everything was majorly delayed, but my framerate remained at 60+. If I hadn't done a speedtest, I would have cracked it up to be net lag, but my net was running perfectly as well.

It happened a bit this morning as well. I'm a bit concerned. I've never seen anything like this before.