Review author here.
bennyg, the reason this device scored a 97% in gaming performance is because we're comparing it to ALL gaming notebooks, including those with a GTX 1050 or even those from the 9XX series. We do rebalance our weights periodically to take more powerful hardware into account.
We compare so many devices because we want to show others how the review device compares to other gaming notebooks from all levels.
That said, we include the individual comparison tables for a more granular rating/ranking. Each reviewer looks at our database and tries to pull a sample of similar devices that are then used in the comparison tables.
If we had this laptop ranked in its own class (high-end gaming laptops, for instance), it would almost certainly receive a score in the high 70s/low 80s. Does this mean it performs worse than a stellar GTX 1060 laptop that would score in the high 80s/low 90s in a "mid-tier" category? Absolutely not. Weak 1080 performance still blows stellar 1060 performance out of the water. However, if we do rank this lower than the 1060 laptop, some readers that don't pay attention to laptop class would assume the 1060 laptop isn't better at gaming because of the higher rating percentage. THEY may not compare gameplay numbers to a more powerful laptop and would be frustrated when they discovered it wasn't. That's a big part of why we try and take a more holistic approach to our ratings.
As to the CPU clock speed, cooling is a concern, but I think voltage has more to do with the lackluster overclocking. Looking at the Metrahit graph under stress, voltage is all over the place. I'm not exactly sure what's going on, but I would suggest that inconsistent voltage has more to do with the overclocking problems than anything else. Temperatures, however, were enough of a concern that I decided not to push the device any further.