I've been feeling like I've been playing through molasses lately.
But I also, apparently, run internet through a toaster and a shredder at once, and get anywhere from a normal 45ms to 90-120ms at any given time.
ALSO: If you are having fps drops you didn't previous experience, and you are on maps with high foliage, and you have your HDR settings on, even at low, turn off your HDR, completely. Absolutely removed any FPS stuttering or lag I was experiencing on those maps.