3770K OC TO 4.6GHZ VERY LOW GFLOPS

So I just got my new 3770k, I have a H100i so I straight away overclocked it to 4.6GHZ, I then ran the latest version ov Intel Burn Test with AVX to see if it was stable, after 50 runs it was all stable, however throughout the 50 runs the maximum GLFOPS it got was 67, I then looked online to see if this was good for a 3770k and I was shocked to find that everyone else was getting over 100 with most getting 120-130

Anyone got any ideas why it is so low