With that said, why can people from Star Trek travel faster than the speed of light?
People in Star Trek can travel faster than light because it is fiction. Faster than light travel is necessary for much science fiction because stories would be very boring without it. We don’t want our intrepid heroes to set out and not reach their destination for 10,000 years, because it would make for very boring television. Having said that, the makers of Star Trek talk about a Warp Drive which distorts space in some sort of unexplained way so that Einstein’s rules apply in a modified form. Then you can do what you like.
