I don't know if this has always been or if it was changed couple of month ago, but when you collide with allied players the camera stutters a lot giving a lag feeling.
Also, when you move into a place where suddenly you have a wall behind you, the camera zooms very fast, giving the same lag feel (like a jump-lag). Since I noticed it, it's personally really annoying (also because I always have lag in the evening so I'm a bit sensitive to that problem).

Another thing: it's probably known but fps drops often/sometimes when VGS commands are pronounced.