It is actually suspected that instead of teleporting he simply moves way too fast, since teleporting would mean He would just go as far as he can, but instead he only moves like, 2-3 metres in a blink, it's also suspected that, welp, since it's made of concrete, It cant move it's arms, and instead It's the test Subject that tries to continue looking so he quickly turns his head backwards as he tries to follow the scp to continue looking.