Has Peter Strzok been fitted with a neurostimulator? His expressions are so bizarre, and it immediately reminded me of someone going through deep brain stimulation. Compare his expressions to the woman in vid related who had a neurostimulator implanted to treat her depression. I wouldn't put it past the cabal fit him with a Deep Brain Stimulator to ensure his compliance and make he does not turn rat. Mild shocks from the stimulator also serve to keep him calm and in control when he gets flustered, the same way it works to alleviate depression. (You also can look up transcranial magnetic stimulation for more exaggerated examples of grimacing and twitching)
Either that or he is being heavily medicated with anti-psychotics. A common side effect many anti-psychotics is tardive dyskinesia or involuntary, repetitive body movements—especially facial grimacing. If the cabal put him on anti-psychotics when he was dismissed last fall, now would be the time where he'd have started showing low level signs tardive dyskinesia and other side effects.
I'm not sure if either or both are true, but something is clearly wrong with that man neurologically.